Earbuds / Compare

CMF Buds 2 Plus vs Sony WF-C510

A

Product A: CMF

Buds 2 Plus

88 of 166 known

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B

Product B: Sony

WF-C510

81 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ACMF Buds 2 Plus

BSony WF-C510

General

4 of 8 differ

Series

Not available

Not available

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

B1842Owner's manualdrv.dns-shop.ru/drivers/Manuals/C/cmf-by-nothing-buds-2-plus_instrukcia_165853_12112025.pdfRead 8 October 2026

YY2982, WF-C5102Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

GTIN / EAN

Not available

02724293033913Retailer pagebhphotovideo.com/c/product/1850117-REG/sony_wfc510_b_wf_c510_true_wireless_earbuds.htmlRead 7 October 2026UPC for US black WFC510/B only. Other colors and regions can have different barcodes.

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

Not available

26 August 20249Press releasesony.mediaroom.com/2024-08-26-Sony-Electronics-Adds-the-WF-C510-to-its-Truly-Wireless-Earbud-RangeRead 5 October 2026US announcement opens preorders. First retail month comes from retrospective release evidence.

Status

Available1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Available13Retailer pagebhphotovideo.com/c/product/1850117-REG/sony_wfc510_b_wf_c510_true_wireless_earbuds.htmlRead 7 October 2026US black WFC510/B is listed In Stock on the access date.

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.

Not available

$69.999Press releasesony.mediaroom.com/2024-08-26-Sony-Electronics-Adds-the-WF-C510-to-its-Truly-Wireless-Earbud-RangeRead 5 October 2026Currently accessible original August 26, 2024 US maker launch release explicitly states suggested retail price 69.99 USD for WF-C510. Opened October 7, 2026. An unlinked secondary claim of a historical 60 USD correction was not verified and does not override this actual maker statement. Later current prices and CAD 99.99 are separate.

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

Not available

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

US1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

US, GB, JP5Maker product pagesony.co.uk/headphones/products/wf-c510Read 5 October 2026Exact UK maker product page establishes GB market.9Press releasesony.mediaroom.com/2024-08-26-Sony-Electronics-Adds-the-WF-C510-to-its-Truly-Wireless-Earbud-RangeRead 5 October 2026Original US maker launch identifies the US market. GB and JP are independently established by their exact regional maker pages.10Maker product pagesony.jp/headphone/products/WF-C510Read 5 October 2026Exact Japanese maker product page establishes JP market.

ColoursiThe maker's own colour names

Light Grey1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Blue, Yellow, Black, White1Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 2026

Segment

Music1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Music5Maker product pagesony.co.uk/headphones/products/wf-c510Read 5 October 2026

Design

2 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.

In-ear1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

In-ear2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

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

Stem1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Stemless5Maker product pagesony.co.uk/headphones/products/wf-c510Read 5 October 2026Exact maker 360-degree views show compact bodies without projecting stems.

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

Either bud8Measurementsoundguys.com/cmf-buds-2-plus-review-137469Read 8 October 2026

Either bud2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

RGB lighting

Not available

No17Retailer pageenter.online/tehnica-audio/casti/sony-wf-c510-black-fara-firRead 7 October 2026Exact model specifications say lighting is absent. Status indicator LED is not RGB decorative lighting.

Drivers and sound

5 of 17 differ

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

ACMF Buds 2 Plus

Type	Diameter (mm)	Count per earbud
Dynamic	12	1

Source1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026One custom 12 mm dynamic audio driver per bud. An acoustic role is not explicitly published.

BSony WF-C510

Type	Diameter (mm)	Count per earbud
Dynamic	6	1

Source1Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 2026Published driver diameter. Unpublished driver technology, count and diaphragm material remain absent.12Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-c510/specificationsRead 5 October 2026Exact maker support specification table states 6 mm. Producer opened the full public table. Reviewer independently verified public official indexed cells where direct fetch was unavailable. Manual page 123 confirms weight, radio and charge fields.13Retailer pagebhphotovideo.com/c/product/1850117-REG/sony_wfc510_b_wf_c510_true_wireless_earbuds.htmlRead 7 October 2026Exact WFC510/B rows state one driver per earpiece, Dynamic and 6 mm. Maker independently states 6 mm. The WalkmanBlog exact-model teardown shows the single main driver. Unrelated retailer microphone/weight errors are not imported.20Reviewthewalkmanblog.com/2024/10/16/sony-wf-c510-fcc-teardown/2Read 7 October 2026Exact-model public teardown identifies the main 6.0 mm driver after removing the cell. One driver is shown inside an earbud. This independently corroborates the explicit retailer one-per-earpiece count.21Retailer pagetelstra.com.au/accessories/earbuds/sony/wf-c510-true-wireless-in-ear-headphonesRead 7 October 2026Exact WF-C510 specification states 6 mm dynamic. One-per-earpiece count is separately explicit in B&H and corroborated by the exact-model teardown.

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

Dynamic1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Dynamic13Retailer pagebhphotovideo.com/c/product/1850117-REG/sony_wfc510_b_wf_c510_true_wireless_earbuds.htmlRead 7 October 2026Exact US black WFC510/B retailer specification explicitly says Dynamic. Maker UK/Japan lists closed construction and 6 mm but does not independently name the transducer mechanism.21Retailer pagetelstra.com.au/accessories/earbuds/sony/wf-c510-true-wireless-in-ear-headphonesRead 7 October 2026Exact WF-C510 specification states 6 mm dynamic. Corroborates the explicit B&H dynamic row.

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

12mm=CalculatedFrom Drivers per bud

6mm=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.

1=CalculatedFrom Drivers per bud

1=CalculatedFrom Drivers per bud

Diaphragm material

LCP (Liquid Crystal Polymer) + PU (Polyurethane)1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Not available

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

Not available

Not available

Impedance

Not available

Not available

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

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Yes6Maker product pagesony.co.uk/store/product/wfc510b.ce7/WF-C510-Truly-Wireless-HeadphonesRead 5 October 2026Exact maker store indexed text explicitly names ear-shape analysis for a personalised 360 Reality Audio experience. Original feature-page direct fetch unavailable. No hearing assessment or inner-mic EQ calibration inferred.

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.

38Measurementsoundguys.com/cmf-buds-2-plus-review-137469Read 8 October 2026

57Reviewsoundguys.com/sony-wf-c510-review-123428Read 5 October 2026Five independently adjustable custom EQ frequency bands. CLEAR BASS is separate. Onboard persistence not proved.

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

Pop, Rock, Classical, Electronic, Enhance Vocals4Maker product pagesupport.nothing.tech/hc/en-us/sections/33423732158481-Product-FeatureRead 8 October 2026Five named sound presets, plus a separate Custom option. ANC modes and Ultra Bass levels are not EQ presets.

Bright, Excited, Mellow, Relaxed, Vocal, Treble Boost, Bass Boost, Speech14Maker product pagesupport.sony.jp/electronics/support/articles/00364150Read 7 October 2026Exact WF-C510 Japanese Sound Connect use guide lists eight named presets. Manual, Custom1/Custom2 and Off are separate editable/default options, not added named factory curves.

Volume limit

Not available

Not available

Spatial audio

2 of 2 differ

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

Spatial Audio Effect1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Maker HRTF-based Spatial Audio Effect. This is separate from documented head tracking, which the exact review excludes.

360 Reality Audio6Maker product pagesony.co.uk/store/product/wfc510b.ce7/WF-C510-Truly-Wireless-HeadphonesRead 5 October 2026

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

No9Reviewgsmarena.com/nothing_cmf_buds_2_plus_review-news-67953.phpRead 8 October 2026Exact model review explicitly excludes head tracking. Static Spatial Audio Effect remains supported.

Not available

Noise cancelling

7 of 11 differ

Active noise cancelling

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

No7Reviewsoundguys.com/sony-wf-c510-review-123428Read 5 October 2026

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

Hybrid1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

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

Not available

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

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Environmental Adaptive ANC and Smart Adaptive mode. Leakage compensation has the stated wearing and High-mode requirements. Adaptive control is distinct from hybrid microphone placement.

Not available

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

38Measurementsoundguys.com/cmf-buds-2-plus-review-137469Read 8 October 2026

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.

50dB1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Theoretical maximum up to 50 dB from Nothing laboratory. The separate 5400 Hz figure is cancellation bandwidth, not acoustic frequency response.

Not available

Transparency mode

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Yes3Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 5 October 2026

Adjustable transparency

Not available

Yes3Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 5 October 2026App ambient sound adjustment. This does not establish adjustable ANC strength or a hearing-aid function.

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

Not available

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.

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Wind Noise Reduction 3.0 improves microphone call clarity. It is not asserted to be a separate adjustable playback ANC wind mode.

Not available

Measured

5 of 23 differ

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

Default Pop EQ has elevated bass relative to the SoundGuys target. Most mids and treble track that target, with minor peaks and dips.8Measurementsoundguys.com/cmf-buds-2-plus-review-137469Read 8 October 2026Default Pop EQ, SoundGuys target, firmware 1.0.1.36. Approximate graph descriptions are not converted into a single standardized bass or treble amount. MDAQS scores are not THD or target deviation.

Lab response has reduced lows and highs relative to the reviewer preference curve. Midrange can sound more prominent by comparison.7Reviewsoundguys.com/sony-wf-c510-review-123428Read 5 October 2026Exact firmware 1.0.2/app 10.4.2 lab commentary. No rating converted into dB.8Measurementsoundguys.com/how-we-testRead 5 October 2026Bruel & Kjaer 5128 fixture, SoundCheck analysis and source preference curve.

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

Not available

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

Not available

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

SoundGuys samples preserve intelligible speech on busy streets and in wind. Indoor background suppression is less effective.8Measurementsoundguys.com/cmf-buds-2-plus-review-137469Read 8 October 2026Published ideal, office, street, wind and reverberant microphone demonstrations. Firmware 1.0.1.36. These are reviewer observations, not maker call-noise claims.

Recorded speech samples show limited office-noise rejection, with better handling of simulated street and wind noise.7Reviewsoundguys.com/sony-wf-c510-review-123428Read 5 October 2026Exact review standardized speech demos. Codec and individual recording firmware are unknown.8Measurementsoundguys.com/how-we-testRead 5 October 2026Calibrated artificial mouth, with simulated background noise, wind and reverberation.

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

Not available

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

Not available

Not available

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

Not available

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.

ACMF Buds 2 Plus

ANC	Codec	Hours (h)
No	Not available	10.37
No	AAC	14.38
No	LDAC	8.57

Source8Measurementsoundguys.com/cmf-buds-2-plus-review-137469Read 8 October 2026Light Grey review sample supplied by Nothing. Five days of testing, firmware 1.0.1.36. One charge lasts 10 h 22 min with ANC off. Codec, numeric level and host are not reported in the product review. The around-60-hour case line is not an explicitly separate measured total and is excluded.10Measurementgsmarena.com/nothing_cmf_buds_2_plus_review-news-67953.phpRead 8 October 2026Exact light-grey Buds 2 Plus review states 14 h 23 min AAC and 8 h 34 min LDAC in its ANC-disabled battery section. Firmware, test volume and exact playback host are unstated. Audio testing uses Pop with Ultra Bass disabled, while whether every audio setting carries into battery testing is unreported. Quick-charge tests are separate and not full-charge runtimes.

BSony WF-C510

ANC	Hours (h)
No	10.48

Source7Reviewsoundguys.com/sony-wf-c510-review-123428Read 5 October 2026Provided sample, four days testing, firmware 1.0.2 and app 10.4.2. Transparency off. Ran 10 h 29 min. Codec not stated. No case recharges included.8Measurementsoundguys.com/how-we-testRead 5 October 2026Standardized continuous music peaks at 75 dB SPL. This method does not establish an unstated ANC or codec setting for a particular sample.

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

14.38h=CalculatedFrom Battery life (measured)

10.48h=CalculatedFrom Battery life (measured)

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

4.54g(0.2 oz)11Measurementtechgearlab.com/reviews/audio/wireless-earbuds/cmf-buds-2-plusRead 8 October 2026Exact-model comparison table gives measured mass 4.54 g for one bud. Tip size and instrument are not specified.

Not available

Microphones and calls

4 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.

61Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Three HD microphones per bud, six across the pair, used by Clear Voice Technology 3.0 for voice recording and calls.

24Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 5 October 2026Page 11 complete parts diagram labels one voice microphone on each earbud. Two physical call microphones across pair.

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.

61Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Maker lists six physical microphones across both earbuds. ANC-specific physical count is not separately published.

22Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Complete headset parts diagram on printed page 11 labels microphones left/right, one per earbud. Shared call/ambient microphones counted once. Case parts diagram has no microphone. No bone sensor inferred.20Reviewthewalkmanblog.com/2024/10/16/sony-wf-c510-fcc-teardown/2Read 7 October 2026Exact-model teardown identifies the mic hole and matching housing hole. Maker full parts diagram labels one physical microphone on each unit, used for calls and ambient sound. No additional microphone is identified by the complete hardware inventory.

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

AI1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Not available

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

Yes2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

Connectivity

4 of 18 differ

Chip

Not available

Airoha AB1563E16Spec databasethewalkmanblog.com/2019/10/07/sony-headphone-internal-codes-and-bluetooth-socsRead 7 October 2026Exact YY2982/WF-C510 row in February 2026 hardware table. Vendor identified by the same table introduction. Based on documented certification/teardown sources, not generic chipset capability.

Connections

Bluetooth1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Bluetooth2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

Bluetooth

5.41Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

5.31Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 202612Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-c510/specificationsRead 5 October 2026

Bluetooth codecs

AAC, SBC, LDAC1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

SBC, AAC1Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 202612Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-c510/specificationsRead 5 October 2026

Bluetooth profiles

Not available

A2DP, AVRCP, HFP, HSP1Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 202612Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-c510/specificationsRead 5 October 2026

LE Audio

No5Maker product pagesupport.nothing.tech/hc/en-us/articles/34007442163089-Does-CMF-Buds-2-Plus-support-LE-AudioRead 8 October 2026Exact-model official answer explicitly says no. Bluetooth 5.4 alone is not used to infer LE Audio or Auracast.

No15Reviewthewalkmanblog.com/2024/11/28/sony-wf-c510-reviewRead 7 October 2026Purchased black sample used almost daily for three months. Feature section explicitly says no LE Audio support. This does not infer a future firmware commitment.

Auracast

Not available

Not available

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

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Maker Dual Connection. Two simultaneous source connections qualify under the catalog definition. A SoundGuys FAQ calls it not true multipoint while also describing simultaneous two-device connections, so its terminology does not change the stored physical connection capability. LDAC coexistence is unproved.

Yes2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Two concurrent sources. Only one music stream plays at a time. Pairing memory is eight, separately documented in pairing chapters.

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

21Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

22Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

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.

84Maker product pagesupport.nothing.tech/hc/en-us/sections/33423732158481-Product-FeatureRead 8 October 2026Support explicitly includes CMF Buds 2 series and gives eight remembered device records. Distinct from two concurrent sources.

82Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Google Fast Pair, Microsoft Swift Pair1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Google Fast Pair, Microsoft Swift Pair9Press releasesony.mediaroom.com/2024-08-26-Sony-Electronics-Adds-the-WF-C510-to-its-Truly-Wireless-Earbud-RangeRead 5 October 2026

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

10m1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

10m1Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 2026Approximate line of sight. Obstacles and radio conditions change actual range.12Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-c510/specificationsRead 5 October 2026

Wireless receiveri2.4 GHz dongle

Not available

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

3 of 3 differ

Low latency mode

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

No19Reviewscarbir.com/tws/sony-wf-c510-reviewRead 7 October 2026Actual purchased WF-C510 review explicitly says no specific low-latency gaming mode in the Video and games playback section. Automatic A/V synchronisation is distinct from a user-selected game mode.

Claimed latency

ACMF Buds 2 Plus

Connection	Mode	Latency (ms)
Bluetooth	Game Mode with a Nothing phone	105

Source1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Current footnote gives as low as 105 ms with a Nothing phone and Game Mode. A technical-table line says less than 110 ms, a compatible broader ceiling. Host model, codec and firmware are not supplied.

BSony WF-C510

Not available

Lowest claimed latency

105ms=CalculatedFrom Claimed latency

Not available

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, iOS1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Android, iOS, Windows, macOS2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

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.

ACMF Buds 2 Plus

Platform	Connection
Android	Bluetooth
iOS	Bluetooth

Source1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

BSony WF-C510

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

Source2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Separate Android, iPhone, Windows and Mac pairing chapters. Phone/computer calls require compatible HFP/HSP application settings.

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

ACMF Buds 2 Plus

Feature	Needs
LDAC	Compatible Android device. Enable High-quality audio in Nothing X and LDAC on the phone. Both connected devices must support LDAC.
Custom controls and advanced settings	Nothing OS 1.5.6 or later has integrated settings. Other Android 6.0 or later and iOS 13 or later devices use Nothing X.
105 ms Game Mode	Nothing phone with Game Mode enabled.
Google Fast Pair	Supported Android device with Google Play services 11.7 or later. Android 6.0 or later.
Smart Adaptive ANC leakage compensation	ANC High memory mode, in-ear detection on, no chewing during the first three seconds after insertion and ambient wind no greater than 3 m/s.

Source1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Current footnotes scope the advanced features. Ordinary Bluetooth audio support is broader than these app and codec requirements.

BSony WF-C510

Feature	Needs
360 Reality Audio	Compatible streaming service and content. Ear-shape analysis requires Sony | Sound Connect on Android or iOS.

Source6Maker product pagesony.co.uk/store/product/wfc510b.ce7/WF-C510-Truly-Wireless-HeadphonesRead 5 October 2026

Official licence

Not available

Not available

Battery and charging

11 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.

53mAh1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Single earbud cell capacity. Typical versus rated is unspecified.

70mAh17Retailer pageenter.online/tehnica-audio/casti/sony-wf-c510-black-fara-firRead 7 October 2026Exact black WF-C510 specifications explicitly label earbud accumulator 70 mAh. Typical/rated distinction is not stated. Corroborated by several retailer tables, not calculated from watt-hours or current.21Retailer pagetelstra.com.au/accessories/earbuds/sony/wf-c510-true-wireless-in-ear-headphonesRead 7 October 2026Exact headset specification states built-in lithium-ion 3.85 V, 70 mAh. Retailers explicitly distinguish earbud 70 from case 300. Typical/rated capacity basis is unstated. No capacity was computed from voltage or energy.

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

Not available

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.

ACMF Buds 2 Plus

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	14
ANC off	AAC	Yes	61.5
ANC on	AAC	No	7.5
ANC on	AAC	Yes	33
Transparency	AAC	No	7.5
Transparency	AAC	Yes	33
ANC off	LDAC	No	8
ANC off	LDAC	Yes	36
ANC on	LDAC	No	5.5
ANC on	LDAC	Yes	25
Transparency	LDAC	No	5.5
Transparency	LDAC	Yes	25
Call	Not available	No	8
Call	Not available	Yes	34
Call	Not available	No	6.5
Call	Not available	Yes	29

Source7Maker product pagesupport.nothing.tech/hc/en-us/articles/34007451479697-What-s-the-battery-life-of-CMF-Buds-2-PlusRead 8 October 2026Maker 25 C laboratory and 50% volume. Codec-specific music rows are explicitly AAC or LDAC. Transparency matches ANC-on figures. Call rows 8/34 hours are ANC off, 6.5/29 are ANC or transparency on. The call table cannot encode ANC so these conditions stay here. Case totals include initial bud charge. General test paragraph mentions AAC and does not provide a separate LDAC host, bitrate or firmware.

BSony WF-C510

Mode	Codec	Includes case recharges	Hours (h)
Transparency	AAC	No	8
ANC off	AAC	No	11
Transparency	SBC	No	7
ANC off	SBC	No	9
Call	Not available	No	5
ANC off	AAC	Yes	22

Source3Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 5 October 2026Printed page 24 exact codec/mode table. EQ, DSEE and Service Link shorten runtimes. Case excluded. Call runtime matches across all published noise modes, so one call row is retained. ANC-off on C510 means ambient processing off, since it has no ANC.10Maker product pagesony.jp/headphone/products/WF-C510Read 5 October 2026Long battery section explicitly 11 h earbuds plus 22 h total including case. Footnote codec AAC, EQ and DSEE off, other features at default. Case total is published, not inferred.

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.

14h=CalculatedFrom Claimed battery life

11h=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.

7.5h=CalculatedFrom Claimed battery life

Not available

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

14h=CalculatedFrom Claimed battery life

11h=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.

61.5h=CalculatedFrom Claimed battery life

22h=CalculatedFrom Claimed battery life

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

33h=CalculatedFrom Claimed battery life

Not available

Talk time (claimed)

8h=CalculatedFrom Claimed battery life

5h=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.

60min1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Buds inside an unplugged case take 60 minutes. The 95-minute USB-C result covers combined earbuds and case and is not a case-only charge time.

90min2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Approximate empty-to-full earbuds time in case. Case-only time is separately published. Not combined charging time.

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

Not available

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

10min1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

5min2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

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.

4.5h1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Earbuds-only 4.5 hours after ten-minute wired charging, AAC, ANC off, 50% volume, default other settings and 25 C. Maker Nothing Power 45 W test adapter. The 8.5-hour headline includes case recharges and is excluded from this field. The separate unplugged-case route claims 2.4 hours buds-only.

1h2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Available operating time chapter states approximately one hour of earbud playback after five-minute charge. ANC, codec and volume for this claim are not separately named.

Charging case

4 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.

460mAh1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Case cell capacity. Typical versus rated is unspecified.

300mAh17Retailer pageenter.online/tehnica-audio/casti/sony-wf-c510-black-fara-firRead 7 October 2026Exact black WF-C510 specifications explicitly label case accumulator 300 mAh. Typical/rated distinction is not stated. Not USB output capacity or charging current.

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

Not available

Case charging port

USB-C1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

USB-C2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

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.

Not available

180min2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

Wireless charging

No6Maker product pagesupport.nothing.tech/hc/en-us/articles/34007451923857-Does-CMF-Buds-2-Pus-support-wireless-chargingRead 8 October 2026

No7Reviewsoundguys.com/sony-wf-c510-review-123428Read 5 October 2026Review explicitly says the charging case has no wireless charging.

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

Not available

Not available

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

No7Reviewsoundguys.com/sony-wf-c510-review-123428Read 5 October 2026

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

No7Reviewsoundguys.com/sony-wf-c510-review-123428Read 5 October 2026

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.

Touch1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Button2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

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

Touch1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 20263Owner's manualdrv.dns-shop.ru/drivers/Manuals/C/cmf-by-nothing-buds-2-plus_instrukcia_165853_12112025.pdfRead 8 October 2026Original guide lists volume up/down among assignable touch functions. The rotating case dial is a lanyard fitting, not a Smart Dial media control.

Buttons2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

Gestures

Double tap, Triple tap, Tap and hold, Double tap and hold1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Press once on left to turn Ambient Sound Mode on or off, Press once on right to play or pause, Press twice on right to skip to next track, Press three times on right to skip to previous or current track, Press four or more times on left to lower volume, Press four or more times on right to increase volume, Press twice on either to receive, end or cancel a call, Press and hold on either to reject a call, Press and hold on right to use or cancel Google app or Siri2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Printed page 18 factory button operations. Group reassignment and disabling through Sound Connect are documented separately. These are physical presses, not capacitive touch gestures.

Remappable controls

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Yes2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Left/right control function groups can be assigned through the app. Individual gestures are not freely remappable.

Voice assistant

Connected phone voice assistant2Owner's manualdrv.dns-shop.ru/drivers/Manuals/C/cmf-by-nothing-buds-2-plus_instrukcia_165853_12112025.pdfRead 8 October 2026Original English operation panel lists waking the voice assistant as an assignable function. No particular assistant brand or cloud service is inferred.

Google app, Siri2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

Sensors and health

2 of 9 differ

In-ear detection

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 20263Owner's manualdrv.dns-shop.ru/drivers/Manuals/C/cmf-by-nothing-buds-2-plus_instrukcia_165853_12112025.pdfRead 8 October 2026Original guide pauses when a bud is removed, resumes automatically within three minutes of reinsertion, and otherwise requires manual playback.

No15Reviewthewalkmanblog.com/2024/11/28/sony-wf-c510-reviewRead 7 October 2026Purchased black sample used for nearly three months. Explicitly no proximity sensor and no automatic pause when removed. Independently corroborated by Scarbir own purchased sample.19Reviewscarbir.com/tws/sony-wf-c510-reviewRead 7 October 2026Controls section explicitly says music does not automatically pause when an earbud is removed.

Sensors

Not available

Not available

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.

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

4 of 7 differ

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

S, M, L1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

SS, M, LL2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

Ear tip materials

Silicone4Maker product pagesupport.nothing.tech/hc/en-us/sections/33423732158481-Product-FeatureRead 8 October 2026Exact Buds 2 Plus materials answer identifies silicone ear tips.

Silicone2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

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

Not available

Not available

Ear tip fit test

No11Measurementtechgearlab.com/reviews/audio/wireless-earbuds/cmf-buds-2-plusRead 8 October 2026Exact-model test table explicitly says Ear Fit Test No. Consumer hearing personalization is a different feature. Its 12.8-hour test has unstated ANC/codec in the accessible review and is not imported.

Not available

Dust and water rating, buds

IP551Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

IPX43Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 5 October 2026IEC 60529 splash resistance of earbuds only. Manual explicitly excludes charging case from water resistance.

Dust and water rating, case

IPX21Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Technical table explicitly lists IPX2 for the case. This is limited drip resistance. Maker footnote says the case is not rated for waterproofing and support says not designed to be waterproof. No immersion or earbud-equivalent water resistance is implied.

Not available

Water resistance depth

Not available

Not available

Software

1 of 6 differ

Companion app

Nothing X1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Sony | Sound Connect2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

App platforms

Android, iOS1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Android, iOS2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

User firmware updates

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 20263Owner's manualdrv.dns-shop.ru/drivers/Manuals/C/cmf-by-nothing-buds-2-plus_instrukcia_165853_12112025.pdfRead 8 October 2026

Yes2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

Dimensions and weight

4 of 4 differ

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

4.5g(0.2 oz)1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

4.6g(0.2 oz)1Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 2026Approximate mass of one earbud including M tip. Pair mass is not stored.12Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-c510/specificationsRead 5 October 2026

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

Width20.9Height33.6Depth22.7mm(0.8 × 1.3 × 0.9 in)1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Explicit maker width 20.9 mm, height 33.6 mm and depth 22.7 mm. Axes are not inferred from tuple order.

Not available

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

42.5g(1.5 oz)1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Maker distinguishes Case weight 42.5 g from Buds weight 4.5 g. No case-inclusive mass is substituted.

31g(1.1 oz)1Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 2026Maker charging-case weight, separate from earbud weight.12Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wf-c510/specificationsRead 5 October 2026

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

Width53.3Height53.3Depth23mm(2.1 × 2.1 × 0.9 in)1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Explicit maker width 53.3 mm, height 53.3 mm and depth 23 mm, stored as labelled.

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.

Hi-Res Audio Wireless1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

Not available

Communication certifications

Not available

Not available

FCC IDs

Not available

AK8YY298218Maker spec sheet (PDF)sony.com/electronics/support/res/manuals/5060/ab2cbc440a91ad260a2921140b1c8582/50605501M.pdfRead 7 October 2026Exact WF-C510 YY2982 Reference Guide printed face 1. Public FCC grant independently confirms same ID. No unrelated case ID inferred.

Other certifications

EU RoHS, REACH1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Maker footnote expressly states restricted-substance testing including EU RoHS and REACH. No medical clearance or skin-safety certification is inferred.

ISED Canada:409B-YY298218Maker spec sheet (PDF)sony.com/electronics/support/res/manuals/5060/ab2cbc440a91ad260a2921140b1c8582/50605501M.pdfRead 7 October 2026Exact WF-C510 Reference Guide printed face 1 Canadian radio certificate. Not a voice-call software certification.

In the box

1 of 2 differ

In the box

Pair of earbuds, Charging case, Ear tips (S, M, L, M fitted), User guide, Safety and warranty information1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Maker list excludes a cable and lanyard. It lists S, M and L tips. The original guide confirms M attached.

Sony WF-C510 earbuds, Charging case, Hybrid silicone rubber earbud tips (SS, M, LL), Documents2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Complete standard box list. C510 includes no USB cable. C710N includes one USB-A to USB-C cable. Tips are silicone rubber, despite Hybrid being their marketing name.

Cables included

Not available

Not available

Links

Not compared

Product page

us.nothing.tech/products/cmf-buds-2-plus1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026

www.sony.co.uk/headphones/products/wf-c5105Maker product pagesony.co.uk/headphones/products/wf-c510Read 5 October 2026

Spec sheet

us.nothing.tech/products/cmf-buds-2-plus1Maker product pageus.nothing.tech/products/cmf-buds-2-plusRead 8 October 2026Current maker product page contains the full Technical Specs table in its public embedded content. Selected reference is US Light Grey. Store identifiers are not assumed to be GTINs.

www.sony.co.uk/headphones/products/wf-c510/spec1Maker product pagesony.co.uk/headphones/products/wf-c510/specRead 5 October 2026Exact maker full specification table. Published Bluetooth communication frequency range is transmission bandwidth and is excluded from acoustic frequency_response_hz.

Manual

drv.dns-shop.ru/drivers/Manuals/C/cmf-by-nothing-buds-2-plus_instrukcia_165853_12112025.pdf2Owner's manualdrv.dns-shop.ru/drivers/Manuals/C/cmf-by-nothing-buds-2-plus_instrukcia_165853_12112025.pdfRead 8 October 2026Original multilingual Nothing-authored B184 user guide, one large foldout sheet, English panels read in full. Retailer-hosted copy. Official support documents were sought first. Manualslibraryy mirror was inaccessible.

helpguide.sony.net/mdr/2982/v1/en/print.pdf2Owner's manualhelpguide.sony.net/mdr/2982/v1/en/print.pdfRead 7 October 2026Original exact English guide, 124 pages. Identity on cover. Parts page 11, box/tips page 8, controls page 18, runtime page 24, specifications page 123.

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

0 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.

1year13Maker product pageus.nothing.tech/pages/terms-of-salesRead 8 October 2026US direct-store voluntary warranty lists headphones and other electronic devices as twelve months from delivery. Applies to selected US direct-store reference, not a worldwide term.

1year13Retailer pagebhphotovideo.com/c/product/1850117-REG/sony_wfc510_b_wf_c510_true_wireless_earbuds.htmlRead 7 October 2026US black WFC510/B package listing states Limited 1-Year Manufacturer Warranty. Manufacturer warranty only. No French or Japanese store extension inherited.

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