Earbuds / Compare

Sony LinkBuds Open vs soundcore AeroFit 2 Pro

A

Product A: Sony

LinkBuds Open

81 of 166 known

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B

Product B: soundcore

AeroFit 2 Pro

81 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ASony LinkBuds Open

Bsoundcore AeroFit 2 Pro

General

7 of 8 differ

Series

LinkBuds1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026

AeroFit1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Listed in the AeroFit line of open-ear earbuds.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

WF-L910, YY2964, WFL910/W3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 202624Maker spec sheet (PDF)content.abt.com/documents/166175/sony-wireless-noise-cancelling-earbuds-spec-sheet.pdfRead 7 October 2026Maker Sony authored document heading WFL910/W LinkBuds Open Truly Wireless Earbuds White. Exact US white identifier added to align stored UPC and warranty scope. Other undocumented colour and regional SKUs omitted.

A3875, A3875Z11, A3875Z21, A3875ZQ1, A3875Z31, A3875G11, A3875G21, A3875GQ12Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-anc.jsRead 15 October 2026US store SKUs A3875Z11 Matte Black, A3875Z21 Gloss White, A3875ZQ1 Matte Purple and A3875Z31 Gloss Blue.3Maker product pageeu.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-anc.jsRead 15 October 2026EU store SKUs A3875G11, A3875G21 and A3875GQ1. The EU store has no blue SKU.9Regulatory filingsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000036614/en_US/000036614.pdfRead 15 October 2026EU and UK Declaration of Conformity: product soundcore AeroFit 2 Pro, model A3875.

GTIN / EAN

02724292870115Retailer pagemicrocenter.com/support/687347/sony-linkbuds-open-true-wireless-bluetooth-earbuds-whiteRead 7 October 2026Product Information table explicitly UPC 027242928701 tied to US White maker part WFL910/W. Only this proved regional finish code stored. Best Buy and B&H exact same SKU corroborate. Not a UPC for every finish or region.16Retailer pagebhphotovideo.com/c/product/1857996-REG/sony_wfl910_w_linkbuds_open_truly_wireless.htmlRead 7 October 2026Exact MFR WFL910/W and UPC 027242928701 in overview. Corroborates Micro Center.

194644317744, 194644274528, 194644274535, 194644274542, 1946442745112Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-anc.jsRead 15 October 2026Barcodes in the US store product data: 194644317744, 194644274528, 194644274535 and 194644274542.3Maker product pageeu.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-anc.jsRead 15 October 2026EU black barcode 194644274511. The EU white and purple SKUs list the same barcodes as the US rows.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

1 October 20245Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026October 1 opens preorder. Actual October retail month independently established below.

6 January 202611Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Maker blog dated 15 January 2026 about the CES 2026 Innovation Awards honoree. SoundGuys dates the CES announcement to 6 January 2026.14Reviewsoundguys.com/the-soundcore-aerofit-2-pro-are-open-earbuds-that-transform-into-anc-earbuds-150692Read 15 October 2026Article dated 6 January 2026: announced at CES 2026.

Status

Available12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Current maker Singapore exact WF-L910 store offers Black and White with Add to cart and public product availability=true. Status applies to currently sold regular models. Singapore labels Violet DISCON, which is not treated as global discontinuation of Violet or the whole model.

Available1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Store product data shows all four colours available. The store page HTML showed a sold-out label when fetched, while the product data feed marked every variant available. The maker blog and reviews say it is on sale.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: available now in Matte Black, Matte Purple and Gloss White.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$199.995Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Original maker launch MSRP 199.99 USD, before US local sales tax. No speaker MSRP or later street price substituted. EUR VAT scope unproved.

$179.991Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026US store price 179.99 USD. Excludes sales tax.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: regular MSRP 179.99 USD. A launch promotion of 149.99 USD through 31 March 2026 is not an MSRP and is not stored.14Reviewsoundguys.com/the-soundcore-aerofit-2-pro-are-open-earbuds-that-transform-into-anc-earbuds-150692Read 15 October 2026Article: 179.99 USD, the same as the AeroFit 2 at launch.15Reviewtechradar.com/audio/earbuds-airpods/anker-soundcore-aerofit-2-pro-reviewRead 15 October 2026Review: 179.99 USD and 179.99 GBP.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

€179.993Maker product pageeu.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-anc.jsRead 15 October 2026EU store price 179.99 EUR including VAT, no compare-at price. The German review price is the same. The EU store listing is dated April 2026, after the January launch, so the German review gives the launch evidence.16Reviewkopfhoerer.de/test/soundcore-aerofit-2-proRead 15 October 2026German review dated 21 January 2026 gives 179,99 EUR for the AeroFit 2 Pro.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

GB, US, JP, SG2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 5 October 2026This exact UK page establishes GB. US launch and Japanese product pages separately establish their own markets.5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 20266Maker product pagesony.jp/headphone/products/LinkBuds_OpenRead 5 October 202612Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Exact maker Singapore store establishes SG sale of the regular WF-L910. Existing GB/US/JP markets retained. No page-language inference.

US, EU1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026US store. The EU store lists the product too.3Maker product pageeu.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-anc.jsRead 15 October 2026EU store product data.

ColoursiThe maker's own colour names

Black, White, Violet5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Original US maker launch lists Black, White and US-only Violet Olivia edition. Separately sold accessory-cover colours are not earbud finishes.6Maker product pagesony.jp/headphone/products/LinkBuds_OpenRead 5 October 2026Japanese current product lists base finishes. Original US maker release separately proves US Violet Olivia edition.

Matte Black, Gloss White, Matte Purple, Gloss Blue1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Colour selector: Matte Black, Gloss White, Matte Purple and Gloss Blue.2Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-anc.jsRead 15 October 2026Colour option values in the product data.

Segment

Music2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 5 October 2026

Sport1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Page: use during workouts or the commute. The maker blog calls it suited to jogging and cycling. Stored as sport like the AeroFit 2.

Design

1 of 4 differ

Form factoriIn-ear seals the ear canal with a tip. Semi-in-ear rests in the outer ear without a seal. Open-ear leaves the ear canal unobstructed.

Open-ear2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 5 October 2026

Open-ear1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Page title and text: 2-in-1 earbuds that switch between open-ear and ANC modes. The product is dual-form. The open-ear form is stored because the store sells it as open-ear earbuds with ANC. In ANC form the maker calls it semi-in-ear.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Port double section: two wearing forms, Open-Ear and ANC. In Open-Ear form the earbuds rest on the ears and leave the ear canals clear.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: Open-Ear form keeps the drivers outside the ear canal. ANC form pivots the hooks inward to create a seal and the maker calls it Semi-In-Ear ANC.

Bud shapeiStem describes an extending control or microphone stalk. Stemless describes a compact body without a stalk.

Stemless2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 5 October 2026

Ear hook6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Overview and wearing sections: an ear hook with five levels over the outer ear.

Use one bud aloneiWhich earbud can operate alone. This does not mean two earbuds can play from different sources.

Either bud3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Either bud5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 26: single-ear use is supported. Dual-ear pairing, reset and custom EQ cannot be used with one earbud.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Controls and power sections: hold one earbud button for 3 seconds to power on a single earbud.

RGB lighting

Not available

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Drivers and sound

8 of 17 differ

Drivers per budiAudio transducers in one earbud. Rows distinguish their type, acoustic role and published diameter. Do not count microphones.

ASony LinkBuds Open

Not available

Bsoundcore AeroFit 2 Pro

Type	Diameter (mm)	Count per earbud
Dynamic	11.8	1

Source1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Page text: 11.8 mm composite drivers. The type and count come from the Anker Japan page and TechRadar.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Specifications: speaker 11.8 mm.10Maker product pageankerjapan.com/products/a3875Read 15 October 2026Page: 11.8 mm dynamic driver with an LCP diaphragm.15Reviewtechradar.com/audio/earbuds-airpods/anker-soundcore-aerofit-2-pro-reviewRead 15 October 2026Review: a custom-built 11.8 mm driver in each earbud. The review spec table also says 11.8 mm and one passage says 10.8 mm, which is read as a typo.

Driver typeiPublished transducer technology. High-excursion, composite and neodymium do not by themselves establish a driver type.

Dynamic17Retailer pagedell.com/en-us/shop/sony-linkbuds-earset/apd/ad433579/audioRead 7 October 2026Exact Sony LinkBuds Open White device Technical Information Features includes Dynamic Driver. Separate corroboration, not a derivation from neodymium material.18Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/sony-wfl910-linkbuds-open-true-wireless-in-ear-headphones-black.htmlRead 7 October 2026Exact WFL910B retailer Driver table explicitly Dynamic and 11 mm. Independently corroborates Dell US White WFL910/W Dynamic Driver. Unrelated mislabeled SPL frequency row and ambiguous microphone scope are excluded.

Dynamic10Maker product pageankerjapan.com/products/a3875Read 15 October 2026Page: 11.8 mm dynamic driver.

Driver sizeiLargest explicitly published circular driver diameter in one earbud. A rectangular driver width is not a diameter.

Not available

11.8mm=CalculatedFrom Drivers per bud

Drivers per budiTotal audio transducers in one earbud, summed from explicit driver quantities. A row with an unknown quantity makes the total unknown.

Not available

1=CalculatedFrom Drivers per bud

Diaphragm material

Not available

LCP10Maker product pageankerjapan.com/products/a3875Read 15 October 2026Page: LCP coated diaphragm.

Frequency responseiPublished acoustic frequency response of the earbuds. Codec transmission bandwidth alone does not qualify. Conditions belong in the source note.

Not available

Min20 HzMax40 kHz6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Specifications: 20 Hz to 20 kHz, and 40 kHz with LDAC enabled. The upper limit is stored with LDAC.

Impedance

Not available

16Ω6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Specifications: 16 ohm.

SensitivityiPublished acoustic sensitivity. The electrical reference and frequency must be stated in sensitivity_reference or the source note.

Not available

Not available

Sensitivity reference

Not available

Not available

Max sample rateiHighest supported audio sample rate under the codec and source-device conditions in the source note. This does not establish lossless playback.

Not available

Not available

Max bit depthiHighest supported audio bit depth under the codec and source-device conditions in the source note. Bluetooth version alone does not establish this.

Not available

Not available

Adaptive EQiAn inner mic tunes the sound to your ear in real time

Not available

Not available

Personalised soundiA profile from a hearing test or ear scan

Yes12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Certified earbuds for a personalised experience explicitly says individual ear-shape analysis through Sound Connect. Separate 360 Spatial Sound Personalizer captures ear images for compatible BRAVIA TVs. Ear-scan spatial profile, not a hearing-threshold test.

Yes6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Hear ID section: a short in-app test of preferred music styles and sound types builds a profile. It is a preference test, not a hearing test.

Onboard EQ

Not available

Not available

Custom EQ bandsiNumber of independently adjustable custom equalizer frequency bands. Availability may require current firmware, an app or a compatible device.

59Reviewtechradar.com/audio/earbuds-airpods/sony-linkbuds-open-reviewRead 5 October 2026Explicit five-band custom EQ. App/firmware version unknown.

86Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026EQ section: eight sliders in the custom equalizer. The guide also lists 22 EQ presets, which are not named, so no preset list is stored.

EQ presetsiNamed equalizer sound presets. Noise-control modes and spatial-audio modes are separate features.

Bright, Excited, Bass Boost, Speech, Relaxed, Mellow23Reviewsmartprix.com/bytes/sony-linkbuds-open-wf-l910-very-niche-earphonesRead 7 October 2026Exact Open Sound section expressly names these six sound presets. Maker app EQ article corroborates names and explicitly lists LinkBuds Open but warns presets differ by model, so generic list not copied wholesale. No game/ANC mode represented as EQ. Software version unknown.

Not available

Volume limit

Not available

Not available

Spatial audio

1 of 2 differ

Spatial audioiNamed spatial or surround audio processing supported with the source and platform conditions stated in the source note.

360 Reality Audio, Android Spatial Audio8Reviewgsmarena.com/sony_linkbuds_open_review-news-65363.phpRead 5 October 2026Compatible Android spatial services or named Sony 360 service required. No audio-specific Dolby licence invented.

Spatial Audio6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Spatial audio section: Head Tracking with Music and Movie modes, or Fixed spatial sound.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: spatial audio with head tracking.

Head trackingiSpatial audio changes with head movement. Static spatial processing alone does not qualify. Compatible device or content requirements belong in the source note.

Yes8Reviewgsmarena.com/sony_linkbuds_open_review-news-65363.phpRead 5 October 2026Exact software section Android Spatial Audio head tracking on select devices, tested firmware 1.2.0. No universal Apple Dolby Atmos route.

Yes1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Page text: dynamic head tracking moves the sound around you.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Spatial audio section: surround sound that follows head movement.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: spatial audio with head tracking.

Noise cancelling

5 of 11 differ

Active noise cancelling

No8Reviewgsmarena.com/sony_linkbuds_open_review-news-65363.phpRead 5 October 2026Exact noise cancellation section explicitly no ANC. Open ring physical awareness does not become an electronic transparency mode.

Yes6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026ANC section: ANC and Normal modes in the soundcore app, or hold an earbud for 2 seconds. It works only when both earbuds are in ANC form.

ANC typeiFeedforward uses exterior microphones. Feedback uses interior microphones. Hybrid uses both. Adaptive control is separate from microphone placement.

Not available

Not available

ANC microphones in both earbudsiPhysical microphones used by ANC across the pair. A shared call and ANC microphone counts once. Case microphones and vibration sensors are excluded.

Not available

613Maker product pagede.soundcore.com/blogs/earbuds/soundcore-aerofit-2-pro-vs-powerbeats-pro-2Read 15 October 2026German maker blog: a precise acoustic system with six ambient noise sensors. SoundGuys calls it a six-microphone array. The split between earbuds is not stated.14Reviewsoundguys.com/the-soundcore-aerofit-2-pro-are-open-earbuds-that-transform-into-anc-earbuds-150692Read 15 October 2026Article: in sealed earbud mode a six-microphone array with Adaptive ANC 3.0.

Adaptive ANCiANC strength or calibration adjusts automatically to noise, fit or ear acoustics. The source note states the adjustment conditions.

Not available

Yes6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026ANC section: the app ANC mode adapts to your ears and your environment. Tips text: adaptive noise cancellation turns on in ANC form.12Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-vs-aerofit-2-proRead 15 October 2026Blog: adaptive ANC using four integrated microphones and AI algorithms.14Reviewsoundguys.com/the-soundcore-aerofit-2-pro-are-open-earbuds-that-transform-into-anc-earbuds-150692Read 15 October 2026Article: Adaptive ANC 3.0 adjusts noise canceling up to 180 times per second.

ANC levelsiNumber of selectable ANC strength levels. Excludes ANC off, transparency and activity profiles unless they explicitly set distinct strength levels.

Not available

Not available

ANC attenuation (claimed)iManufacturer maximum claimed noise attenuation. Frequency and measurement conditions belong in the source note. This is not reviewer-measured overall attenuation.

Not available

Not available

Transparency mode

No8Reviewgsmarena.com/sony_linkbuds_open_review-news-65363.phpRead 5 October 2026

Not available

Adjustable transparency

Not available

Not available

Automatic ANC and transparency blendiAutomatically blends active cancellation with ambient sound. Automatic activity-based switching between separate modes alone does not qualify.

Not available

Not available

Conversation detection

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Speak-to-Chat automatically pauses/mutes music when wearer speaks. Does not imply a medical hearing feature.

Not available

Wind noise reductioniA documented physical design or processing feature for reducing wind noise. The source note distinguishes mesh or shape changes from selectable processing.

Not available

Not available

Measured

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Frequency response notes (measured)iMeasured by a reviewer, not claimed by the maker

Lab response falls below the reviewer preference curve in bass and emphasizes parts of the highs. Open fit allows substantial ambient noise.10Reviewsoundguys.com/sony-linkbuds-open-review-an-interesting-sequel-125497Read 5 October 2026Exact lab commentary. No graph extraction, ratings or MOS converted into dB.11Measurementsoundguys.com/how-we-testRead 5 October 2026Bruel & Kjaer 5128 fixture, SoundCheck and source preference curve.

Not available

Bass amount (measured)iDeviation from the review source target in the bass range. Positive means more bass. Target, test method and settings belong in the source note.

Not available

Not available

Treble amount (measured)iDeviation from the review source target in the treble range. Positive means more treble. Values from different targets may not be directly comparable.

Not available

Not available

Deviation from target (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Consistency between fittings (measured)iMeasured by a reviewer, not claimed by the maker

Not available

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Harmonic distortion (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Sound leakage (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Noise isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

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Noise isolation, best (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Passive isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Call quality notes (measured)iMeasured by a reviewer, not claimed by the maker

Standardized recordings show mixed call quality and pronounced wind sensitivity.10Reviewsoundguys.com/sony-linkbuds-open-review-an-interesting-sequel-125497Read 5 October 2026Exact recorded ideal/office/street/wind/reverberant speech samples. No numerical capsule count inferred.11Measurementsoundguys.com/how-we-testRead 5 October 2026Calibrated artificial mouth with simulated noise, wind and reverberation.

Not available

Mic low-frequency extension (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extension (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratio (measured)iMeasured by a reviewer, not claimed by the maker

Not available

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Latency (measured)iMeasured by a reviewer, not claimed by the maker

Not available

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Bluetooth latency, worst (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

2.4 GHz latency, worst (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Latency in game mode (measured)iThe best case the buds can reach. Measured by a reviewer

Not available

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Battery life (measured)iReviewer-tested operation from one full charge of the earbuds. Excludes case recharges. ANC, codec, connection, volume and tested edition belong in the row or source note.

ASony LinkBuds Open

ANC	Hours (h)
No	9.5

Source10Reviewsoundguys.com/sony-linkbuds-open-review-an-interesting-sequel-125497Read 5 October 2026Provided Open sample, three days, firmware 1.0.4/app 1.1.0 as published, ran 9 h 30 min. Codec not stated. GSMArena 8 h 18 min has different unspecified conditions and is not combined.11Measurementsoundguys.com/how-we-testRead 5 October 2026Standardized continuous music peaks 75 dB SPL. This does not establish an unstated ANC/codec for a particular sample.

Bsoundcore AeroFit 2 Pro

Not available

Longest tested use per chargeiHighest earbuds-only duration among stored reviewer tests. Modes and settings may differ between tests and products.

9.5h=CalculatedFrom Battery life (measured)

Not available

Battery life with case (measured)iReviewer-tested total including earbuds and case recharges. Do not calculate this by multiplying one-charge runtime by claimed recharge count.

Not available

Not available

Full charge time (measured)iBuds in the case, 0 to 100 %. Measured by a reviewer

Not available

Not available

Weight per bud (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Microphones and calls

1 of 7 differ

Voice microphones in both earbudsiPhysical call and beamforming microphones across the pair. Excludes case microphones and vibration sensors. Shared ANC microphones can also count here when used for calls.

Not available

41Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Page text: 4 mics with AI-boosted call technology. The split between earbuds is not stated.12Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-vs-aerofit-2-proRead 15 October 2026Blog: four integrated microphones with AI algorithms for adaptive ANC. The German blog says four microphones for calls.13Maker product pagede.soundcore.com/blogs/earbuds/soundcore-aerofit-2-pro-vs-powerbeats-pro-2Read 15 October 2026German maker blog: four microphones with AI noise reduction for calls.

All microphones in both earbudsiEvery physical microphone across the pair, including call and ANC microphones. Shared microphones count once. Excludes the charging case and voice vibration sensors.

Not available

Not available

Bone conduction voice sensoriA dedicated bone or jaw conduction sensor for detecting speech vibrations. A microphone or speech-detecting accelerometer alone does not prove this architecture.

Not available

Not available

Mic noise reduction

AI7Maker product pagesony.jp/headphone/products/LinkBuds_Open/feature_4.htmlRead 5 October 2026Exact model maker call paragraph explicitly AI-trained separation of wearer voice and environmental noise. Published physical voice/total capsule counts not found.

AI1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026Page text: AI-boosted call technology.

Call audio bandwidthiHighest supported call-audio bandwidth. Compatible phone, operating system, call app or network requirements belong in the source note.

Not available

Not available

Mic mute controliAn earbud control that mutes the microphone during calls. Includes touch or pressure gestures and physical buttons. Phone/app-only controls do not qualify.

Not available

Not available

SidetoneiHear your own voice in calls

Not available

Not available

Connectivity

10 of 18 differ

Chip

Sony Integrated Processor V25Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Exact product launch explicitly names Integrated Processor V2 in this model, not inferred from sibling hardware.

Not available

Connections

Bluetooth3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Bluetooth6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Power on and pairing section and specifications: Bluetooth 6.1 only.

Bluetooth

5.31Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Original exact manual printed pages 145-146 explicitly publish Bluetooth 5.3, named codecs and profiles.

6.14Maker product pageservice.soundcore.com/product-description/a08e2000006OrpTAASRead 15 October 2026Spec list: Bluetooth version 6.1.5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 1: Bluetooth 6.1.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Specifications: Bluetooth 6.1.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: Bluetooth 6.1 with multipoint.

Bluetooth codecs

SBC, AAC, LC31Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026LC3 needs compatible LE Audio Android hardware and app setup. No Auracast inferred from LC3 or Bluetooth 5.3.3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

SBC, AAC, LDAC4Maker product pageservice.soundcore.com/product-description/a08e2000006OrpTAASRead 15 October 2026Spec list: supported Bluetooth codecs LDAC, SBC, AAC.5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 2: SBC, AAC and LDAC.16Reviewkopfhoerer.de/test/soundcore-aerofit-2-proRead 15 October 2026Review: SBC and AAC plus LDAC as the Hi-Res codec.

Bluetooth profiles

A2DP, AVRCP, HFP, HSP, TMAP, CSIP, MCP, VCP, CCP1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Not available

LE Audio

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Not available

Auracast

Yes12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Next-generation Bluetooth audio explicitly compatible with Auracast broadcast audio. LE Audio is described as Beta. Compatible LE Audio/Auracast source hardware/software required. No compatibility inferred solely from Bluetooth 5.3 or LC3. Original Sony US specification PDF corroborates.14Maker spec sheet (PDF)content.abt.com/documents/166175/sony-wireless-noise-cancelling-earbuds-spec-sheet.pdfRead 7 October 2026Sony Electronics authored WFL910/W six-page original specification PDF. Next-generation Bluetooth audio paragraph explicitly Supports Auracast broadcast audio, LE Audio Beta. Retailer host does not turn this into a retailer-authored claim.

Not available

MultipointiConcurrent Bluetooth connections to multiple source devices. Pairing memory and switching through a manufacturer account alone do not qualify.

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Two concurrent sources in Classic Audio, one playing stream. App list marks multipoint unavailable during LE Audio. No simultaneous LC3 multipoint claim.

Yes5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 21: Dual Connections connect two devices.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Dual connection section: connect two Bluetooth devices at the same time. Dual connections are on by default.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: Bluetooth 6.1 with multipoint connection.

Multipoint devicesiMaximum source devices concurrently connected by Bluetooth, not the number remembered in pairing history.

23Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

25Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 21 and 22: two devices at once. A third device needs one removed first.12Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-vs-aerofit-2-proRead 15 October 2026Blog: connect to two devices simultaneously.16Reviewkopfhoerer.de/test/soundcore-aerofit-2-proRead 15 October 2026Review: up to two sources at the same time.

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Not available

Paired devices rememberediMaximum remembered Bluetooth source pairings. This is separate from simultaneous multipoint connections.

83Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

85Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 12: up to 8 Bluetooth devices remembered.

Automatic switching between own devicesiThrough the maker's account

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Printed page 83 explicitly Google audio switch on compatible Android 8+ devices, using Fast Pair. Separate from Sony Auto Switch to LinkBuds Speaker.

Not available

Fast pairing

Google Fast Pair, Microsoft Swift Pair3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Android Google audio switch chapter explicitly requires Google Fast Pair. Windows 10/11 chapters explicitly document Microsoft Swift Pair.

Not available

Audio sharingiShare one stream with a second pair

Yes12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Same paragraph explicitly shares music from one smartphone to multiple headphones via Auracast. Not multipoint or the Auto Switch speaker handoff.14Maker spec sheet (PDF)content.abt.com/documents/166175/sony-wireless-noise-cancelling-earbuds-spec-sheet.pdfRead 7 October 2026Same maker paragraph expressly sharing music from one smartphone to multiple headphones.

Not available

Wireless range (claimed)

10m1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 20263Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Manual explicitly approximate line-of-sight 10 m. Obstacles, interference, antenna, reception and software conditions affect actual range.

10m5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 18: 33 ft or 10 m.

Wireless receiveri2.4 GHz dongle

None20Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 7 October 2026Complete What's in the box list on printed page 9 shows headset, USB-A to USB-C charging cable, charging case and documents. Bluetooth-only communication specification and charge-only USB route identify no proprietary 2.4 GHz audio dongle. This is a complete box and connection scope, not an inference from the 2.4 GHz radio band. Sold-separately transmitters would be Bluetooth accessories, not a proprietary receiver.

Not available

Receiver connector

Not available

Not available

Simultaneous 2.4 GHz and Bluetooth audioiBoth connection types can play audio together. Quick switching between independent modes does not qualify.

Not available

Not available

Latency

2 of 3 differ

Low latency mode

Yes12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Same maker paragraph expressly LE Audio Beta for ultra-low latency gaming. Exact manual Supported codecs chapter confirms LC3 low-latency transmission. Compatible source and LE Audio setup required, no separate proprietary game-toggle or numerical delay invented.14Maker spec sheet (PDF)content.abt.com/documents/166175/sony-wireless-noise-cancelling-earbuds-spec-sheet.pdfRead 7 October 2026Same paragraph LE Audio Beta ultra-low latency ideal for gaming. No claimed millisecond scalar published.20Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 7 October 2026Current exact guide printed page 39 expressly connects LE Audio to less sound delay and instructs selecting LE Audio connection setting for headphones > LE Audio Priority. This is a selectable connection mode. Printed page 87 names LC3 low-latency transmission. Requires compatible Android/LE Audio source. No separate gaming toggle or numerical delay claimed.

Yes15Reviewtechradar.com/audio/earbuds-airpods/anker-soundcore-aerofit-2-pro-reviewRead 15 October 2026Review: the app brings a low-latency mode and a spatial audio mode.16Reviewkopfhoerer.de/test/soundcore-aerofit-2-proRead 15 October 2026Review: the app has a gaming mode that reduces latency.

Claimed latency

ASony LinkBuds Open

Not available

Bsoundcore AeroFit 2 Pro

Connection	Latency (ms)
Bluetooth	200

Source5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 31: about 200 ms. The connection is Bluetooth. No mode is stated.

Lowest claimed latency

Not available

200ms=CalculatedFrom Claimed latency

Compatibility

3 of 4 differ

PlatformsiPlatforms with documented audio support. App availability and advanced features can be more limited. Edition-specific support is listed in variants.

Android, iOS, Windows, macOS3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Android, iOS6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Pairing and volume sections give Android and iOS steps, and the LDAC section names Android 8.0 or later. FAQ 7 names the App Store. A support article about a MacBook exists, but its text could not be read, so macOS is not stored.

Connection per platformiDocumented audio connection for each platform. USB-C phone routes require a compatible port. Platform edition and microphone restrictions belong in source notes or feature requirements.

ASony LinkBuds Open

Platform	Connection	Microphone works
Android	Bluetooth	Yes
iOS	Bluetooth	Yes
Windows	Bluetooth	Yes
macOS	Bluetooth	Yes

Source3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Exact Android/iPhone/Windows/Mac pairing chapters and computer calls chapter. Classic phone/desktop calls need compatible HFP/HSP app settings. LE Audio availability is separately restricted.

Bsoundcore AeroFit 2 Pro

Not available

Features that need a specific deviceiDevice, operating system, firmware, codec, content, account or region requirements for a named feature.

ASony LinkBuds Open

Feature	Needs
LE Audio / LC3	Compatible Android smartphone and Sound Connect LE Audio setup. Classic-only multipoint, Quick Access and some voice-assistant functions become unavailable.
Google audio switch	Compatible Android 8 or later devices connected through Google Fast Pair.
Head tracking	Compatible source device, spatial content and application. Availability varies by platform.
Auracast audio sharing	Compatible smartphone broadcast source and LE Audio/Auracast hardware and software. Maker describes the LE Audio path as Beta.
Ear-shape sound personalization	Sony | Sound Connect ear-image analysis with supported 360 Reality Audio service. BRAVIA TV personalization separately uses Sony | 360 Spatial Sound Personalizer and compatible television.
Google Find My Device / Find Hub	Updated headset software with added network support, compatible Android device and dedicated Classic Audio connection. Finding support is unavailable through the LE Audio path.

Source3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Exact manual Classic/LE Audio and Google audio switch conditions. Spatial phone/content requirements independently retained in the source describing tracking.13Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Exact maker Auracast/LE Audio and certified ear-scan/BRAVIA paragraphs. Existing Classic-only multipoint restrictions retained. New requirement rows reflect source prose without adding unproved OS/firmware minima.25Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/software/00347092Read 7 October 2026Exact release notes specify new Google Find My Device only during dedicated Classic Audio connection. Firmware 1.5.1 includes that prior feature. LE Audio Fast Pair addition is a separate feature, not proof of LE Audio finding network support. Independent direct fetch blocked. Complete public indexed exact update text read, including Applicable Model WF-L910 and the previous-benefits Classic Audio-only clause. No login or access workaround.

Bsoundcore AeroFit 2 Pro

Feature	Needs
LDAC	Android 8.0 or later. Turn it on in the soundcore app under Settings, Sound Mode, Preferred audio quality. It shortens playback time.
Active noise cancelling	Works only when both earbuds are in ANC form. It cannot be turned on in Open-Ear form. Automatic switching is on by default and Smart Toggle in the app turns it off.
Hear ID	Set up in the soundcore app under Sound Effects, EQ, Preference. The Open-Ear form does not support the Hear ID test, so keep the earbuds in ANC form.
AI translation	The phone must be connected to the soundcore app, version 3.8.7 or higher, and Dual Connections must be turned off.
Anka AI assistant	Latest soundcore app with the earbuds connected to the app. The assistant cannot open or control other apps.

Source5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 7: the AI translation feature needs soundcore app version 3.8.7 or higher.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026ANC, Hear ID, AI assistant, AI translation and LDAC sections.

Official licence

Not available

Not available

Battery and charging

13 of 13 differ

Battery per budiBattery cell capacity of one earbud. The source note states typical or rated capacity. Charging input current is not capacity.

Not available

60mAh5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 3: 60 mAh for each earbud. Typical or rated basis is not stated. The safety sheet gives a nominal battery voltage of 3.85 V. A German comparison page lists a different figure for the earbuds, so the FAQ is used.

User-replaceable earbud batteryiThe maker documents normal battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

No8Maker spec sheet (PDF)lp.ankerjapan.com/hubfs/aoos/manual/A3875Safety.pdfRead 15 October 2026Safety sheet: the product contains non-replaceable lithium ion batteries, nominal 3.85 V, and the user should not replace them.

Claimed battery lifeiManufacturer maximum runtime under the stated mode, codec and spatial processing state. Name the spatial or immersive processing mode and other conditions in source notes. Omit unspecified settings. with_case false means one charge of the earbuds. true means earbuds plus case recharges.

ASony LinkBuds Open

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	8
ANC off	SBC	No	8
ANC off	LC3	No	8
Call	Not available	No	4.5
ANC off	Not available	Yes	22

Source4Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Exact page 27 music runtime 8 h with AAC/SBC/LC3. EQ, DSEE, Speak-to-Chat, voice wake, Service Link and Adaptive Volume Control shorten runtime. ANC-off represents ordinary music playback on a device explicitly without ANC. Call 4.5 h and standby 13 h are separate. Standby excluded.5Press releasesony.mediaroom.com/2024-10-01-Sony-Electronics-Expands-its-LinkBuds-Range-with-the-LinkBuds-Fit-and-LinkBuds-Open-Earbuds,-and-LinkBuds-SpeakerRead 5 October 2026Maker explicitly 22 h including case. Footnote 12 gives 8 h earbuds + 14 h case, with Bluetooth. Codec unstated. No charging-case capacity derived.

Bsoundcore AeroFit 2 Pro

Mode	Codec	Includes case recharges	Hours (h)
ANC off	Not available	No	7
ANC off	Not available	Yes	34
ANC on	Not available	No	5
ANC on	Not available	Yes	24
ANC on	LDAC	No	3
Call	Not available	No	4
Call	Not available	Yes	20

Source5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 9, 10 and 11, with music at 50 percent volume and calls at 60 percent volume. Open-Ear form 7 hours and 34 hours with the case. ANC form 5 hours and 24 hours with the case. With LDAC the ANC form gives about 3 hours. The FAQ also gives 6 hours with LDAC in the Open-Ear form, but the CES blog says LDAC cuts about 3 hours in that form, so that row is not stored. Calls are about 4 hours in both forms. Open-Ear form is stored as ANC off because ANC cannot be turned on there. ANC form is stored as ANC on.10Maker product pageankerjapan.com/products/a3875Read 15 October 2026FAQ on the page: ANC off 7 hours and 34 hours with the case in Open-Ear form, 5 hours and 24 hours in ANC form, calls about 4 hours.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog footnote, internal lab testing: Open-Ear form 7 hours and 34 hours with the case, ANC form 5 hours and 24 hours with the case. Calls up to 4 hours in Open-Ear form with 20 hours with the case. In ANC form calls are up to 4 hours with ANC on and 5 hours with ANC off, about 20 and 25 hours with the case. The call mode cannot split ANC on and off, so the 4 and 20 hour rows are stored. LDAC cuts about 3 hours in Open-Ear form and 2 hours in ANC form.

Longest claimed use per chargeiHighest earbuds-only runtime among all stored modes. This can be ANC off, Hearing Aid, heart-rate or call use. Read the battery table and source conditions.

8h=CalculatedFrom Claimed battery life

7h=CalculatedFrom Claimed battery life

Playback per charge with ANC (claimed)iHighest claimed earbuds-only playback with ANC enabled. Codec and spatial-audio conditions belong in the source note.

Not available

5h=CalculatedFrom Claimed battery life

Playback per charge without ANC (claimed)iHighest claimed earbuds-only playback with ANC disabled. Codec and volume conditions belong in the source note.

8h=CalculatedFrom Claimed battery life

7h=CalculatedFrom Claimed battery life

Total with case (claimed)iHighest claimed runtime including the initial earbud charge and all case recharges. It is not the case recharge runtime alone.

22h=CalculatedFrom Claimed battery life

34h=CalculatedFrom Claimed battery life

Total with case and ANC (claimed)iClaimed total playback with ANC, including the initial earbud charge and case recharges.

Not available

24h=CalculatedFrom Claimed battery life

Talk time (claimed)

4.5h=CalculatedFrom Claimed battery life

4h=CalculatedFrom Claimed battery life

Full charge time, budsiTime to charge discharged earbuds to full in the case. Excludes charging the case itself or a combined buds-and-case result.

90min3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Approximate earbuds-only full charge in case. Case-only charging is separately published.

60min5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 3: a full earbud charge takes about 1 hour. The French and Japanese spec tables agree.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Specifications table: earbuds 1 hour.

Charging guidanceiPublished charging guidance or estimates that do not separate earbuds and case. Preserve the maker’s component scope and limits. Do not assign an unspecified or combined estimate to a component-specific numeric field.

Not available

The maker documents disagree on the charging times that include the case. The French guide gives 1.7 hours for the case and earbuds by cable and 2.6 hours wirelessly. The Japanese guide gives about 2 hours by cable and about 3 hours wirelessly in its text and 3.5 hours wirelessly in its spec table. The FAQ gives about 2 hours for the case and about 4 hours wirelessly. The case input is 5 V 0.8 A. The FAQ says a fully charged case recharges the earbuds 3 times.5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 4, 14 and 8.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Charging section and specifications: case wired 0.7 hour, case and earbuds 1.7 hours wired and 2.6 hours wireless. Input 5 V 0.8 A.7Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3875Manual.pdfRead 15 October 2026Japanese guide: case full charge about 2 hours by cable and about 3 hours wirelessly in the text. Its spec table gives earbuds and case about 2 hours by cable and about 3.5 hours wirelessly.

Quick charge timeiCharge duration corresponding to quick_charge_playback_h. Source note states earbuds-only or case-inclusive charging and playback settings.

3min3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

10min5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 16: a 10 minute recharge gives up to 3.5 hours of playback. The charging case does not support this feature.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: 10 minutes of charging provides up to 3.5 hours of playback.

Earbud playback after quick chargeiEarbuds-only runtime after quick_charge_min of charging. A claimed case-inclusive total does not qualify. ANC, codec and volume conditions belong in the source note.

1h3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Maker approximately one hour of earbud music after three-minute charging. Codec/volume unspecified for this quick-charge claim. Excludes case-inclusive runtime.

3.5h5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 16: up to 3.5 hours of playback after 10 minutes. This is earbud playback. Form, volume and ANC are not stated.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: up to 3.5 hours of playback after 10 minutes of charging.

Charging case

5 of 10 differ

Case batteryiCharging-case battery cell capacity. The source note distinguishes typical, rated and output capacity. USB output capacity alone does not qualify.

300mAh18Retailer pageharveynorman.co.nz/headphones-and-speakers/headphones/sony-wfl910-linkbuds-open-true-wireless-in-ear-headphones-black.htmlRead 7 October 2026Exact WFL910B table: Charging Case Battery Capacity 300 mAh, lithium-ion cell. Typical versus rated designation unstated. Not case USB output capacity or bud capacity. Walkman exact-model technical report separately names Springpower 442129 300 mAh 3.85 V. Maker manuals/spec sheet omit capacity. Earbud 54 mAh here conflicts with other stated 56 mAh and remains absent.19Press articlethewalkmanblog.com/2024/10/09/sony-announces-new-linkbuds-line-featuring-linkbuds-open-fit-and-a-wireless-speakerRead 7 October 2026Open-specific FCC teardown discussion explicitly names case Springpower 442129 300 mAh 3.85 V. Rating designation unstated. Corroborates retailer case cell figure. Later Fit 500 mAh paragraph excluded. Bud 56 mAh is described alongside 0.216 Wh and may be arithmetic, so not stored.

750mAh5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 4: 750 mAh for the charging case. The user guides list 750 mAh in the spec table without naming the part.

User-replaceable case batteryiThe maker documents normal case battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

No8Maker spec sheet (PDF)lp.ankerjapan.com/hubfs/aoos/manual/A3875Safety.pdfRead 15 October 2026Same sentence covers the product, including the charging case.

Case charging port

USB-C3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

USB-C6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Overview: USB-C charging port on the case.

Case full charge timeiBy cable, 0 to 100 %. A time the maker gives with the earbuds inside the case counts, and the source note says so.

150min3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Not available

Wireless charging

No10Reviewsoundguys.com/sony-linkbuds-open-review-an-interesting-sequel-125497Read 5 October 2026Exact Open review charging paragraph explicitly says the USB-C case does not support wireless charging. This is corroborated by exact maker table/manual wired charging method.

Yes5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 6 and 13: the charging case supports wireless charging.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Charging section: place the case on a wireless charger for wireless charging.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: wireless charging supported.15Reviewtechradar.com/audio/earbuds-airpods/anker-soundcore-aerofit-2-pro-reviewRead 15 October 2026Review: the case facilitates wireless charging.

Wireless standardsiDocumented case charging standards or supported chargers. Magnetic alignment alone does not establish Qi2 certification.

Not available

Qi5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 6: wireless charging supports the Qi protocol. The FAQ also gives a maximum power output of 3 W. That figure is not stored because the safety sheet gives a different 0.005 to 5 W charger range and the field counts case input only.

Wireless charging poweriHighest wireless charging input the maker states for the case. The output of a charging pad does not count.

Not available

Not available

Speaker in caseiAn audio speaker physically in the charging case, for locating or status sounds. A microphone in the case is separate.

Not available

Not available

Screen on case

Not available

Not available

Case works as audio transmitteriCase relays external source audio through USB or an analog audio input. A case microphone for recording or calls does not qualify.

Not available

Not available

Controls

4 of 5 differ

ControlsiPressure is a force sensor that does not move, such as a stem you squeeze. Button is a key that moves when pressed.

Touch, Head gestures, Voice commands3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Button6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Overview lists an earbud button. Controls table uses presses and holds.15Reviewtechradar.com/audio/earbuds-airpods/anker-soundcore-aerofit-2-pro-reviewRead 15 October 2026Review: each earbud has a physical button with a click, not a touch area.16Reviewkopfhoerer.de/test/soundcore-aerofit-2-proRead 15 October 2026Review: controlled through an integrated button on the back of each earbud.

Earbud volume controliHow earbud controls adjust volume, including a voice command if supported. Phone or app controls alone do not qualify.

Touch3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Buttons6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Controls table: one press on the right earbud raises volume and one press on the left lowers it.

Gestures

Wide Area Tap on earbud or nearby skin, Head nod to accept a call, Head shake to reject a call3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Press twice (left or right): play or pause, Press once (right): volume up, Press once (left): volume down, Press once (left or right): answer a call, Hold for 2 seconds (left or right): reject an incoming call or end a call, Hold for 2 seconds (left or right): turn ANC on or off, Hold for 3 seconds (left and right): power off, Hold for 3 seconds on one earbud: power on that earbud6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Controls table with default button settings. L is left and R is right.

Remappable controls

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026App reassigns left/right function groups, voice functions and Quick Access. No arbitrary individual-gesture remapping inferred.

Yes6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Controls section: touch and button controls can be customised in the app for volume, skip track, play or pause, and the voice assistant.

Voice assistant

Amazon Alexa, Google app, Siri3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Separate Amazon Alexa, Android Google app and iPhone Siri chapters. Cloud/device/app/region restrictions apply. Some voice routes and Quick Access are unavailable under LE Audio. On-device playback Voice Control is represented in control_types, not invented as a cloud assistant.

Anka6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Smart assistant section: Anka, started by saying Hey Anka.

Sensors and health

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In-ear detection

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Parts diagrams name built-in IR sensors. App enables automatic pause/resume and power-off when removed.

No5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 15: the AeroFit 2 Pro does not feature wearing detection.

Sensors

Infrared wear sensors3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Sensors that detect Open-Ear or ANC form6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Wearing section: built-in sensors detect which form is in use from whether the earbuds cover the ear canals. SoundGuys says two sensors in each earbud.14Reviewsoundguys.com/the-soundcore-aerofit-2-pro-are-open-earbuds-that-transform-into-anc-earbuds-150692Read 15 October 2026Article: two sensors in each earbud detect Open-Ear or sealed mode and recalibrate the EQ.

Heart rate sensor

Not available

Not available

Skin temperature sensingiA documented skin temperature sensor. This is separate from the operating temperature range or a heart-rate sensor.

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

Hearing testiA documented hearing assessment feature, including consumer sound-personalization tests. Medical diagnostic clearance must be stated separately.

Not available

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Safe Listening12Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Total convenience, total customisation explicitly Safe Listening checks WHO healthy listening habits. Exposure-awareness function, not medical hearing aid, hearing test, skin sensor or automatic sudden-sound suppression.

Not available

Fit and durability

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Ear tips includediTip sizes supplied with the product, including the pair fitted to the earbuds. Do not list separately sold sizes as included.

Not available

Not available

Ear tip materials

Not available

Not available

StabilisersiPhysical stabilizing fittings or structures. Stability bands are separate from fins, wings and ear hooks.

Fins3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Ear hook6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Wearing sections: an ear hook that slides between five levels.

Ear tip fit test

Not available

Not available

Dust and water rating, buds

IPX4 equivalent4Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Earbuds only. Exact Open claim is IPX4 equivalent, without inferring independent certification. Charging case explicitly not water resistant.

IP554Maker product pageservice.soundcore.com/product-description/a08e2000006OrpTAASRead 15 October 2026Spec list: waterproof rating for the earbuds IP55.5Maker product pageservice.soundcore.com/article-description/soundcore-AeroFit-2-Pro-FAQRead 15 October 2026FAQ 5: earbuds IP55. The charging case is not water resistant, so no case rating is stored.6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Specifications: IP55.11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: rated IP55 for water and dust resistance.

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

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Companion app

Sony | Sound Connect3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

soundcore6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026ANC, Hear ID and EQ sections refer to the soundcore app.

App platforms

Android, iOS3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Android, iOS6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Smart assistant section: Android users adjust system settings so the app runs in the background. FAQ 7 names the App Store for iOS.

User firmware updates

Yes3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Yes6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026Firmware update section: the app announces new firmware and updates the earbuds.

Finding network

Google Find Hub25Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/software/00347092Read 7 October 2026Exact WF-L910 firmware 1.5.1 published 22 April 2026 lists prior included addition of the new Google Find My Device under dedicated Classic Audio only. Schema current Google Find Hub enum identifies this renamed Google finding network. No inference from Fast Pair alone. Independent direct fetch blocked. Complete public indexed exact update text read, including Applicable Model WF-L910 and the previous-benefits Classic Audio-only clause. No login or access workaround.

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Yes6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026AI translation section: real-time and face-to-face translation in 100 languages.

Dimensions and weight

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Weight per budiMass of one earbud. Tip size and approximate values belong in the source note. Do not store pair or case-inclusive mass.

5.1g(0.2 oz)1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026Approximate one-earbud mass including attached fitting supporter. Pair mass is not stored.3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Manual explicitly approximate one-earbud weight including fitting supporter.

10.5g(0.4 oz)10Maker product pageankerjapan.com/products/a3875Read 15 October 2026Spec table: about 10.5 g per earbud and about 109 g for the charging case with the earbuds. TechRadar gives 10.4 g in its preview and 11 g in its review. The case-only weight is not stated by the maker, so it is not stored.

Bud dimensionsiDimensions of one earbud on the explicitly identified width, height and depth axes. An unlabeled tuple cannot establish those axes.

Not available

Not available

Case weightiCharging case mass excluding earbuds. Case-inclusive product mass does not qualify unless the source explicitly gives the empty-case figure.

30.6g(1.1 oz)1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026Exact charging-case mass, separate from earbuds.3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Manual separately publishes charging-case weight, excluding earbud mass.

Not available

Case dimensionsiCharging-case width, height and depth on explicitly identified source axes. Report conflicting axis labels rather than reorder a tuple by appearance.

Not available

Not available

Certifications

2 of 3 differ

Hi-Res AudioiThe Japan Audio Society logos. Hi-Res Audio Wireless is also written Hi-Res Wireless Audio.

Not available

Hi-Res Audio Wireless11Maker product pageus.soundcore.com/blogs/open-ear/aerofit-2-pro-ces-2026-awardRead 15 October 2026Blog: Hi-Res Audio certified with LDAC support on Android. The blog does not name the wireless logo. TechRadar names Hi-Res Audio Wireless, which is stored.15Reviewtechradar.com/audio/earbuds-airpods/anker-soundcore-aerofit-2-pro-reviewRead 15 October 2026Review: Hi-Res Audio Wireless certification and LDAC support.

Communication certifications

Not available

Not available

FCC IDs

AK8YY296421Owner's manualmanuals.plus/m/3e695feadcd6e23333de6773d2a93fffd2caa8dace4aaf25fe4135cf858ad63b_optim.pdfRead 7 October 2026Sony-authored Reference Guide 5-056-449-12(1), original reference page 1, compilation PDF page 1. Exact LinkBuds Open YY2964 label explicitly FCC ID AK8YY2964 and IC 409B-YY2964. The previous mirror returned a challenge page. This ordinary public PDF compilation begins with the same manufacturer guide. No separate case FCC ID inferred.

Not available

Other certifications

360 Reality Audio certified, ISED IC: 409B-YY2964, FCC Part 15 Class B, ISED RSS-10212Maker product pagestore.sony.com.sg/products/wf-l910Read 7 October 2026Exact model paragraph expressly 360 Reality Audio certified earbuds. Separate from Hi-Res Audio certification, licensing for game consoles or Dolby branding.22Owner's manualmanuals.plus/m/3e695feadcd6e23333de6773d2a93fffd2caa8dace4aaf25fe4135cf858ad63b_optim.pdfRead 7 October 2026Original Sony reference guide page 1 identifies IC 409B-YY2964. Reference page 2 explicitly states FCC Part 15 Class B compliance and ISED RSS-102 RF exposure compliance. Same opening pages in this public compilation. Standards/identifier are stated compliance evidence, not medical clearance.

CE, UKCA9Regulatory filingsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000036614/en_US/000036614.pdfRead 15 October 2026Declaration lists Directive 2014/53/EU for the EU and UK. CE and UKCA marks follow from the declaration.

In the box

2 of 2 differ

In the box

Sony LinkBuds Open earbuds with Air Fitting Supporters, Charging case, USB-A to USB-C cable, Documents3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Complete standard box list. Factory Air Fitting Supporters are attached. Separately sold covers/supporter colours and Olivia edition promotions excluded.

Earbuds, Charging case, USB-C and USB-A cable, Quick start guide10Maker product pageankerjapan.com/products/a3875Read 15 October 2026Spec table package list for Japan: the unit, charging case, USB-C and USB-A cable and quick start guide. The Japan model numbers A3875N11, N21, N31 and NQ1 are not stored.

Cables included

ASony LinkBuds Open

Type	Count
USB-A to USB-C charging cable	1

Source3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026

Bsoundcore AeroFit 2 Pro

Type
USB-C and USB-A cable

Source10Maker product pageankerjapan.com/products/a3875Read 15 October 2026Package list: one USB-C and USB-A cable. The length is not stated.

Links

Not compared

Product page

www.sony.co.uk/headphones/products/linkbuds-open2Maker product pagesony.co.uk/headphones/products/linkbuds-openRead 5 October 2026Exact model maker product page. Open ring admits sound physically, without electronic transparency mode.

us.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-anc1Maker product pageus.soundcore.com/products/a3875-aerofit-2-pro-open-ear-earbuds-with-ancRead 15 October 2026

Spec sheet

www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specifications1Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-l910/specificationsRead 5 October 2026Full exact maker support technical table. Bluetooth communication range is not acoustic frequency response. Unlabelled case dimensions are not assigned to width/height/depth. Exact published 11 mm ring driver diameter describes its outer ring, not a solid 11 mm diaphragm. Physical driver count per earbud was not explicitly found. The optional driver table is omitted because an uncounted row would derive a count of one. Diameter remains documented here rather than creating an unsupported derived count.

service.soundcore.com/product-description/a08e2000006OrpTAAS4Maker product pageservice.soundcore.com/product-description/a08e2000006OrpTAASRead 15 October 2026Soundcore support product page for the AeroFit 2 Pro. It lists a short spec list, the user guides and the EU declaration.

Manual

helpguide.sony.net/mdr/2964/v1/en/print.pdf3Owner's manualhelpguide.sony.net/mdr/2964/v1/en/print.pdfRead 5 October 2026Original exact English guide 148 pages. Box page 9, runtime page 27, specifications pages 145-146, app pages 115-116 inspected.

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdf6Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000038533/en_US/000038533.pdfRead 15 October 2026French user guide A3875 from the Soundcore knowledge base. No English PDF was found. The English guide is a support article that has no readable text.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year15Retailer pagemicrocenter.com/support/687347/sony-linkbuds-open-true-wireless-bluetooth-earbuds-whiteRead 7 October 2026US exact White WFL910/W Vendor Warranty table parts 1 Year Limited and labor 1 Year Limited. B&H explicitly Limited 1-Year Manufacturer Warranty corroborates. Maker exact US support links a warranty PDF but fetch did not resolve that file. Retailer source explicitly vendor warranty, excludes retail return policy, statutory rights, UK registration promotion and JP Sony-store 3 year promotion.16Retailer pagebhphotovideo.com/c/product/1857996-REG/sony_wfl910_w_linkbuds_open_truly_wireless.htmlRead 7 October 2026Items Included explicitly Limited 1-Year Manufacturer Warranty for US WFL910/W. No other regional warranty generalized.

1.5years8Maker spec sheet (PDF)lp.ankerjapan.com/hubfs/aoos/manual/A3875Safety.pdfRead 15 October 2026Safety sheet: 18-month limited warranty, with 12 months for India.

Both are also in the API. Back to all earbuds.