Earbuds / Compare

Beats Solo Buds vs soundcore Liberty 4 NC

A

Product A: Beats

Solo Buds

74 of 166 known

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B

Product B: soundcore

Liberty 4 NC

81 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ABeats Solo Buds

Bsoundcore Liberty 4 NC

General

4 of 8 differ

Series

Solo1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

Not available

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

MUVW3LL/A, A3150, A3151, A31521Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 202617Owner's manualbeatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo-buds/solobuds-sh-zm.pdfRead 5 October 2026Original leaflet lists A3150, A3151 and A3152. Reference sales SKU MUVW3LL/A separately proven by maker product structured data.

A3947, A3947Z111Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Current maker US product URL identifies sales SKU A3947Z11 for Velvet Black. A3947 is the original QSG hardware model. These identifiers are distinguished rather than presenting the sales SKU as a separate regulatory hardware model.4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012512/en_US/000012512.pdfRead 8 October 2026Original official Quick Start Guide explicitly prints Model A3947 and document 51005003876 V2. A3947Z11 is the US Velvet Black sales SKU, distinct from the hardware identifier. The service index also lists an A3947C guide, without proving a different hardware specification.

GTIN / EAN

19594911635319Retailer pagebhphotovideo.com/c/product/1827227-REG/beats_by_dr_dre_muvw3ll_a_true_wireless_earbuds.htmlRead 7 October 2026Exact US Matte Black MUVW3LL/A product overview UPC 195949116353. Other finish and bundle identifiers excluded.

Not available

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

30 April 20243Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 2026

Not available

Status

Available1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

Available1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Current US maker A3947Z11 listing shows Velvet Black and Add to Cart. Current price is not used as launch evidence.

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

Not available

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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

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

$79.993Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 2026Original Beats April 30, 2024 Business Wire release syndicated in full. Exact Solo Buds section gives 79.99 USD, before local sales tax. Solo 4 headphone price and features are excluded.

$99.995Press releaseprnewswire.com/news-releases/liberty-4-nc-with-enhanced-adaptive-active-noise-cancelling-system-now-available-on-amazon-and-soundcorecom-301867453.htmlRead 8 October 2026Maker-issued June 29, 2023 release explicitly prices all five colours at USD 99.99. Current sale prices are not launch evidence.

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 pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

US1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

ColoursiThe maker's own colour names

Matte Black, Storm Gray, Arctic Purple, Transparent Red, Ivory, Orange3Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 202618Press articlemacrumors.com/2026/07/02/apple-just-released-a-new-productRead 5 October 2026Later retailer-exclusive Ivory and Orange finishes are explicitly named, alongside original four. Article calls Orange a new colour of the existing Solo Buds, not a hardware generation. Orange also had an earlier regional India finish. No extra product entry or 2026 release date inferred.

Velvet Black, Clear White, Navy Blue, Pastel Pink, Light Blue1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Five directly listed colour choices. Only the US Velvet Black reference row is represented.

Segment

Music1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

Music1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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.

In-ear1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

In-ear1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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

Stemless1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

Stem1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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

Either bud5Owner's manualsupport.apple.com/guide/beats/use-beatssolobuds-dev9529a95f9/webRead 5 October 2026Either earbud can manage playback and calls. Current microphone chapter permits always-left/right selection. Not two separate audio sources.8Owner's manualsupport.apple.com/en-euro/guide/beats/dev869599d75/webRead 5 October 2026Solo Buds explicitly included in call-mute settings. Microphone can automatically switch to one earbud or be assigned left/right. This does not establish an in-ear playback sensor.

Either bud3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026The complete CONTROLS table separately describes Mono mode and left/right controls. Either earbud can be worn alone, with a reduced mono control set.

RGB lighting

Not available

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Drivers and sound

10 of 17 differ

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

ABeats Solo Buds

Type	Count per earbud
Dynamic	1

Source13Review52audio.com/archives/212545.htmlRead 5 October 2026One physical transducer per earbud. A dual-layer diaphragm is one transducer. The explicitly measured approximate 8.15 mm diameter is omitted because there is no measured driver-size field.14Reviewkopfhoerer.de/test/beats-solo-budsRead 5 October 2026The original exact-generation review explicitly states a dynamic transducer. Measured or rounded diameter is not stored as a claimed driver size. Pair-wide counts are not per-earbud counts.

Bsoundcore Liberty 4 NC

Type	Diameter (mm)
Dynamic	11

Source3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026SPECS explicitly identifies an 11 mm dynamic driver unit. A separately stated physical transducer count was not found, so no count is inferred from a single listed row.8Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000019752/en_US/000019752.pdfRead 8 October 2026

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

Dynamic20Reviewkopfhoerer.de/test/beats-solo-budsRead 7 October 2026Exact original Solo Buds. B&H exact MUVW3LL/A table independently says Driver Type Dynamic. Dual-layer diaphragm not interpreted as two drivers.

Dynamic3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026

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

Not available

11mm=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

Not available

Diaphragm material

Not available

Liquid Crystal Polymer (LCP)5Press releaseprnewswire.com/news-releases/liberty-4-nc-with-enhanced-adaptive-active-noise-cancelling-system-now-available-on-amazon-and-soundcorecom-301867453.htmlRead 8 October 2026Maker-issued June 29 release identifies the custom 11 mm driver as made of Liquid Crystal Polymer (LCP). This records the diaphragm material, without applying the polymer claim to the housing or voice coil.

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 kHz3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026SPECS publishes acoustic 20 Hz to 40 kHz response. Measurement tolerance, codec and test level are not stated. This is separate from codec transmission sample rate.8Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000019752/en_US/000019752.pdfRead 8 October 2026

Impedance

Not available

10Ω3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 20268Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000019752/en_US/000019752.pdfRead 8 October 2026

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

Not available

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Sensitivity reference

Not available

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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

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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

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

No27Reviewtechradar.com/audio/headphones/earbuds-airpods/beats-solo-buds-reviewRead 7 October 2026Exact original 2024 Solo Buds Features section explicitly states no adaptive EQ algorithm. Radio and ordinary sound processing alone do not imply this feature. No later maker adaptive-EQ update found. The same review 17.5 h estimate is extrapolated from 34% consumed over 6 h and is excluded as a full-charge measurement.

Not available

Personalised soundiA profile from a hearing test or ear scan

Not available

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Maker explicitly names HearID 2.0 and a tailored sound profile. Original manual also lists HearID sound. Exact retailer describes the hearing test used to create the profile.

Onboard EQ

No15Reviewsoundguys.com/beats-solo-buds-review-118283Read 5 October 2026Exact review says there is no native EQ in app or Apple settings. No adjustable frequency bands stored.

Not available

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

Not available

86Reviewsoundguys.com/anker-soundcore-liberty-4-nc-review-100100Read 8 October 2026Reviewer explicitly identifies eight independent custom equalizer bands, separate from its 22 preset effects. Full named preset list was not recovered, so preset names are not invented.

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

Not available

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Volume limit

Not available

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Spatial audio

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

Spatial Audio with Dolby Atmos (static Apple Music playback)10Maker product pagebeatsbydre.com/products/compareRead 5 October 2026Exact maker comparison maps basic Spatial Audio to Solo Buds, separate from dynamic head tracking. Exact original review describes static Dolby Atmos in Apple Music.14Reviewkopfhoerer.de/test/beats-solo-budsRead 5 October 2026Exact review describes Dolby Atmos 3D playback in Apple Music without head tracking. No personalized ear-scan hearing profile inferred.

3D surround sound3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026APP explicitly lists 3D surround sound. This is virtual processing, without inferring head tracking or native multichannel input.

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

No15Reviewsoundguys.com/beats-solo-buds-review-118283Read 5 October 2026Exact review explicitly excludes head-tracking spatial audio. Static Apple Music Atmos is a separate feature.

Not available

Noise cancelling

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Active noise cancelling

No1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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

Not available

Hybrid5Press releaseprnewswire.com/news-releases/liberty-4-nc-with-enhanced-adaptive-active-noise-cancelling-system-now-available-on-amazon-and-soundcorecom-301867453.htmlRead 8 October 2026Maker describes both an external sound sensor and an in-ear sound sensor for environmental and ear-canal noise detection. This maps to the schema hybrid ANC definition. Physical ANC microphone quantity is not inferred.

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.

Not available

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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

Not available

56Reviewsoundguys.com/anker-soundcore-liberty-4-nc-review-100100Read 8 October 2026Reviewer identifies five manual strengths. Adaptive operation and transport profiles are separate and not counted as extra fixed strengths.

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

38dB4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012512/en_US/000012512.pdfRead 8 October 2026Manufacturer QSG states that SGS lab testing found up to 38 dB at the deepest attenuation band and up to 19 dB comprehensive reduction. The exact frequency and method are not printed. The 98.5 percent headline is identified with the deepest-band performance, without conversion to dB. This is a maker-published claim, not an independently retrieved reviewer overall result.

Transparency mode

No15Reviewsoundguys.com/beats-solo-buds-review-118283Read 5 October 2026Exact review explicitly lacks electronic environmental amplification. Passive isolation is not Transparency.

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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

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.

Not available

Yes6Reviewsoundguys.com/anker-soundcore-liberty-4-nc-review-100100Read 8 October 2026Reviewer explicitly identifies a user-selectable wind-reduction option in the ANC controls. This is distinct from microphone call-noise AI.

Measured

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

Measured response emphasizes upper mids relative to the reviewer target, with reduced lower mids and high treble.15Reviewsoundguys.com/beats-solo-buds-review-118283Read 5 October 2026Published Solo Buds lab curve and prose relative to reviewer target. No graph points or MDAQS scores converted into numeric dB. Firmware, codec and original fixture unstated.

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

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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

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

Not available

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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

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

Published ideal, office, street, windy and reverberant microphone demos. Review reports voice suppression along with surrounding noise in busy environments.15Reviewsoundguys.com/beats-solo-buds-review-118283Read 5 October 2026Exact ideal, office, street, windy and reverberant demos. Host, firmware and call codec unstated. Noise gate can suppress speech as well as surrounding noise.

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

Not available

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

ABeats Solo Buds

Connection	Latency (ms)
Bluetooth	175

Source22Measurementlesnumeriques.com/intra-ecouteur-true-wireless/beats-solo-buds-p74903/test.htmlRead 7 October 2026Exact original Solo Buds, Arctic Purple. Review test conditions firmware 3A112, native iOS controls and Android Beats app 2.8 (22060). Measurement host, transmitted codec and timing instrument/protocol unstated. No app compensation or game-mode result inferred.

Bsoundcore Liberty 4 NC

Not available

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

175ms=CalculatedFrom Latency (measured)

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.

ABeats Solo Buds

ANC	Hours (h)
No	17.4
No	18.5
No	17
No	17.83
No	12
No	8

Source15Reviewsoundguys.com/beats-solo-buds-review-118283Read 5 October 2026Exact Solo Buds battery paragraph reports 17 hours 24 minutes after July 4, 2024 battery-test update. No ANC hardware. Standard music peaks at 75 dB SPL. Exact host and codec unstated. Setup paragraph names Studio Buds, so its 3A112 firmware does not establish Solo Buds test firmware.16Reviewsoundguys.com/how-we-testRead 5 October 2026Protocol linked from exact review uses music peaking at 75 dB SPL and recorded playback endpoint. Current protocol does not prove original fixture, host, firmware or transmitted codec.22Measurementlesnumeriques.com/intra-ecouteur-true-wireless/beats-solo-buds-p74903/test.htmlRead 7 October 2026Added second row only. Approximately 18 h 30 min timed on exact original Solo Buds Arctic Purple, firmware 3A112. Earbuds-only one-charge duration. No ANC hardware. Volume, host, codec and stop endpoint unstated. Existing SoundGuys 17 h 24 min row and its separate method remain.26Measurementkopfhoerer.de/test/beats-solo-budsRead 7 October 2026Exact original Solo Buds review published 2024-06-26. The Lade-Case section explicitly separates maker 18 h from its own practical 17 h runtime at 75% volume on iOS. Earbuds-only duration, no ANC hardware and no battery in case. Exact host model, codec, firmware, timing protocol and shutdown endpoint unstated. Separate from SoundGuys 17.4 h and LesNumeriques approximately 18.5 h tests.28Measurementfrandroid.com/marques/beats/2072370_test-des-beats-solo-buds-face-aux-airpods-largument-du-prixRead 7 October 2026Exact original Solo Buds test, earbuds-only single charge. 50% volume test fell 10 min short of maker 18 h, stored 17 h 50 min by exact duration conversion. 75% volume lasted approximately 12 h, 100% volume approximately 8 h. The source qualifies the latter figures as about. ANC absent and passive case adds no recharge. Exact tested playback host, codec, firmware and stop endpoint unstated. Do not assign iPhone 15 Pro charging example to playback tests.29Measurementtomsguide.fr/test-des-beats-solo-buds-que-valent-les-premiers-ecouteurs-true-wireless-dapple-a-moins-de-100-eurosRead 7 October 2026Independent original Solo Buds near 18.5 h runtime at two-thirds volume across two listening sessions. This corroborates the numeric 18.5 h row separately from LesNumeriques, whose volume is unknown. Earbuds only, no ANC hardware or case recharge. Codec, firmware and exact playback host unstated. The article also times 32 min to 50% and 80 min to 100% using a MacBook Pro USB-C adapter, but does not explicitly connect an empty/shutdown endpoint, so no measured full-charge scalar is stored.

Bsoundcore Liberty 4 NC

ANC	Hours (h)
Yes	9.88

Source6Reviewsoundguys.com/anker-soundcore-liberty-4-nc-review-100100Read 8 October 2026SoundGuys purchased and reviewed exact A3947 Navy/Cosmic Blue hardware, firmware 03.82. With ANC enabled, one earbud charge ran 9 h 53 min, converted to hours. The linked general testing article does not specify the original test codec, host, level or ANC strength, so those settings remain unknown. This is a named reference test sample, not a measurement of every later production revision. The maker current 8 h ANC claim uses different published default/50-percent conditions, so the figures are not assumed directly comparable. The review case 50-hour discussion is not stored as a measured total.

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

18.5h=CalculatedFrom Battery life (measured)

9.88h=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

Not available

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Microphones and calls

5 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.

21Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026One custom call microphone per earbud. Two physical call microphones and two total across the pair. No ANC or voice vibration capsule added.2Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 2026

61Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Maker says six microphones with an AI algorithm for calls. Counts the physical microphones across the pair, without adding ANC functions as extra microphones.

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.

21Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 20262Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 202613Review52audio.com/archives/212545.htmlRead 5 October 2026Actual single MEMS call microphone in one earbud matches maker one-per-bud statement. No extra inner ANC microphone or case mic inferred.

61Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026The maker explicitly lists six physical microphones. Shared ANC and call functions are counted once. No case microphone is inferred.

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.

No19Retailer pagebhphotovideo.com/c/product/1827227-REG/beats_by_dr_dre_muvw3ll_a_true_wireless_earbuds.htmlRead 7 October 2026Exact US MUVW3LL/A lists no physical sensors and separately lists ordinary earpiece microphones. No dedicated bone/jaw conduction voice sensor. Maker call algorithm remains processing, not a sensor.

Not available

Mic noise reduction

Not available

AI1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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.

Yes2Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 2026One press mutes or unmutes during calls. Two presses end calls by default. Current guide permits call-action remapping.5Owner's manualsupport.apple.com/guide/beats/use-beatssolobuds-dev9529a95f9/webRead 5 October 20268Owner's manualsupport.apple.com/en-euro/guide/beats/dev869599d75/webRead 5 October 2026Current iPhone/iPad, Mac and Android routes permit one-press or two-press mute, with complementary call-end behavior.

Not available

SidetoneiHear your own voice in calls

Not available

Not available

Connectivity

10 of 18 differ

Chip

MediaTek MT2827SA13Review52audio.com/archives/212545.htmlRead 5 October 2026Exact original Solo Buds teardown identifies MediaTek MT2827SA, Apple-customized audio SoC. Not H1 or H2.

Not available

Connections

Bluetooth7Owner's manualsupport.apple.com/en-euro/guide/beats/dev46c519179/webRead 5 October 2026

Bluetooth1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Bluetooth

5.31Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

5.31Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 20268Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000019752/en_US/000019752.pdfRead 8 October 2026

Bluetooth codecs

SBC, AAC15Reviewsoundguys.com/beats-solo-buds-review-118283Read 5 October 2026

SBC, AAC, LDAC6Reviewsoundguys.com/anker-soundcore-liberty-4-nc-review-100100Read 8 October 2026Exact A3947 review lists SBC, AAC and LDAC. LHDC or later-family LE Audio is not transferred.

Bluetooth profiles

Not available

Not available

LE Audio

No24Reviewlesnumeriques.com/intra-ecouteur-true-wireless/beats-solo-buds-p74903/test.htmlRead 7 October 2026Original 2024 exact Solo Buds review, firmware 3A112 and Android Beats 2.8. Clubic independently states no LE Audio. No later maker LE Audio update found. Bluetooth 5.3 alone is not LE Audio.25Reviewclubic.com/test-produit-531489-test-beats-solo-buds-des-ecouteurs-efficaces-et-abordables-mais-pas-sans-defauts.htmlRead 7 October 2026Exact original model Connectivity paragraph explicitly Pas de LE Audio. No classic codec or radio-version inference.

Not available

Auracast

Not available

Not available

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

Not available

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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

Not available

21Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Maker explicitly describes concurrent connections to two source devices. This is separate from saved pairing history.

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

No1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Exact FAQ How do I enable LDAC mode states that enabling LDAC automatically exits multipoint. The original manual also explicitly disables two-device connection for LDAC.

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

Not available

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Apple one-tap setup, Google Fast Pair2Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 2026Exact FAQ explicitly names Google Fast Pair for Android and one-touch setup on iPhone. Latest operating-system software and compatible Google Play Services required. Manual Bluetooth is available on older hosts.7Owner's manualsupport.apple.com/en-euro/guide/beats/dev46c519179/webRead 5 October 2026Solo Buds pairing uses either earbud b button inside open case, not a case pairing button. Native Android Fast Pair and Apple connection card are separately documented.

Google Fast Pair1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

Not available

10m3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026Published Bluetooth range 10 m / 33 ft. The direct metric claim is used, without converting the rounded feet value.8Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000019752/en_US/000019752.pdfRead 8 October 2026

Wireless receiveri2.4 GHz dongle

None23Reviewrtings.com/headphones/reviews/beats/solo-buds-true-wirelessRead 7 October 2026No proprietary 2.4 GHz dongle connection. Generic USB Bluetooth adapters are not the dedicated wireless receiver described by this field.

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.

No23Reviewrtings.com/headphones/reviews/beats/solo-buds-true-wirelessRead 7 October 2026Only Bluetooth audio transport is documented, so no simultaneous proprietary 2.4 GHz/Bluetooth transport. Physical Bluetooth operating frequency is not a second 2.4 GHz connection type.

Not available

Latency

1 of 3 differ

Low latency mode

Not available

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

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.

iOS, macOS, Android, Windows, Other7Owner's manualsupport.apple.com/en-euro/guide/beats/dev46c519179/webRead 5 October 2026

Android, iOS, Windows, macOS1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Exact maker FAQ covers phone use, Mac audio and Windows audio. App availability remains limited to Android and iOS.

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.

ABeats Solo Buds

Platform	Connection	Microphone works
iOS	Bluetooth	Yes
macOS	Bluetooth	Yes
Android	Bluetooth	Yes
Windows	Bluetooth	Not available
Other	Bluetooth	Not available

Source7Owner's manualsupport.apple.com/en-euro/guide/beats/dev46c519179/webRead 5 October 2026Exact supported Beats guide includes Solo Buds, Apple iPhone/iPad, Mac, Android and Windows PC pairing. Current microphone chapter proves Apple-host calls. Other means Apple TV Bluetooth audio. No console or PC microphone route inferred. Apple Vision Pro instructions assume a case system button and are not used for Solo Buds.8Owner's manualsupport.apple.com/en-euro/guide/beats/dev869599d75/webRead 5 October 2026

Bsoundcore Liberty 4 NC

Platform	Connection	Microphone works
Windows	Bluetooth	Yes
macOS	Bluetooth	Yes

Source1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Maker computer-call FAQ explicitly gives Liberty 4 NC Hands-Free as both input and output on conferencing apps. This does not establish console support or USB audio.

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

ABeats Solo Buds

Feature	Needs
Account pairing	Compatible current Apple device and Apple Account, or compatible current Android device with Google Play Services. Pre-pairing is separate from simultaneous multipoint.
Android Audio Switch	Compatible Android devices running current software with Google Play Services and account setup. Manufacturer describes this separately from Apple automatic routing.
Voice assistant	Button press-and-hold activates Siri or the configured Android assistant. Dedicated Siri chapter requires on-device controls for Solo Buds.
Phone-powered charging	External USB-C cable and iPhone 15 or compatible Android phone, tablet or laptop that can supply USB power. Cable sold separately.
Static Spatial Audio	Compatible Apple Music host, software and Dolby Atmos content. No earbud head tracking inferred.

Source1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 20263Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 20266Owner's manualsupport.apple.com/en-euro/guide/beats/devc97d4f096/webRead 5 October 202610Maker product pagebeatsbydre.com/products/compareRead 5 October 2026Native maker compare data explicitly maps Android Audio Switch to product id earbuds-solo-buds. Current Android software with Google Play Services required. Apple automatic-switching guide excludes Solo Buds, so this field is Android ecosystem support, not generic multipoint or Apple automatic routing. This is Google Android Audio Switch. The standalone automatic_device_switching field is omitted because its help requires the maker's account.

Bsoundcore Liberty 4 NC

Feature	Needs
LDAC playback	Compatible Android 8.0 or later source. Enable Preferred Audio Quality in the soundcore app and install the required earbud firmware update. LDAC disables multipoint.
Full app features	Maker recommends soundcore app 3.2.7 or later and current earbud firmware. The companion app is not available for computers.
Computer calls	On Windows, select Liberty 4 NC Hands-Free for microphone and speaker in the call app. The maker Mac computer guidance instead says to select Liberty 4 NC for input and output. Stereo playback and hands-free calls use different Bluetooth audio modes.

Source1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Current maker FAQ states Android 8.0 minimum for LDAC, a firmware update to enable it, and mutually exclusive LDAC and multipoint. App 3.2.7 and later is the maker recommendation for full features, without asserting that this is the latest app version. Windows conferencing guidance specifically names the Hands-Free endpoint. The separate Mac computer guidance names Liberty 4 NC without that suffix. The visible requirement preserves both platform scopes.8Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000019752/en_US/000019752.pdfRead 8 October 2026LDAC section explicitly requires Android 8.0 or later and excludes two-device connection while LDAC is enabled. Additional regulatory and security sections are not treated as proof that old reviewed firmware is current.

Official licence

Not available

Not available

Battery and charging

12 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.

105mAh13Review52audio.com/archives/212545.htmlRead 5 October 2026Actual steel earbud cell rated 105 mAh and 0.403 Wh. Printed rated capacity, not a conversion from energy or charging current. Case has no battery cell.

53mAh3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026SPECS explicitly states 53 mAh x 2 earbuds, so 53 mAh per bud. Typical versus rated capacity and nominal cell voltage are not labelled.8Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000019752/en_US/000019752.pdfRead 8 October 2026Current official service-index A3947C English guide has the same complete core table: 53 mAh x 2 earbuds, 800 mAh case, 11 mm dynamic, 20 Hz to 40 kHz, 10 ohms, Bluetooth 5.3 and 10 m. This corroborates the published hardware facts without proving universal performance equivalence between revisions.

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.

ABeats Solo Buds

Mode	Includes case recharges	Hours (h)
ANC off	No	18

Source1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 202618 hours is one charge of the earbuds. Case has no recharge battery and must connect to USB-C power to charge them. No case-inclusive row or case-cell capacity is invented. April 2024 preproduction test with iPhone 15 Pro at 50 percent volume ends at first earbud stopping. AAC playlist encoding does not prove transmitted codec.2Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 20263Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 2026Original footnotes 1 and 6 corroborate exact earbud-only and drained-earbud quick-charge tests. No case recharges, measured result or Bluetooth codec inferred.

Bsoundcore Liberty 4 NC

Mode	Codec	Includes case recharges	Hours (h)
ANC off	Not available	No	10
ANC off	Not available	Yes	50
ANC on	Not available	No	8
ANC on	Not available	Yes	40
Transparency	Not available	No	8
Transparency	Not available	Yes	40
ANC off	LDAC	No	6
ANC off	LDAC	Yes	30
ANC on	LDAC	No	5
ANC on	LDAC	Yes	25
Call	Not available	No	4.5

Source2Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Exact playtime FAQ: Normal 10 h earbuds / 50 h total, ANC 8 h / 40 h, transparency 8 h / 40 h, LDAC with ANC 5 h / 25 h and LDAC without ANC 6 h / 30 h. The non-LDAC codec is not named, so AAC or SBC is not guessed. Tests use Anker laboratory default settings and 50 percent volume. The text normal-mode qualifier is not applied to ANC/LDAC rows as a contradictory operating setting. Call row is the separately stated ANC-off 4.5 h. ANC-on calls 4 h cannot be distinguished by the call enum, so are qualified here rather than duplicated with no visible ANC distinction. Case figures mean earbuds plus case recharges, as explicitly confirmed by the original manual, not extra case runtime alone.

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.

18h=CalculatedFrom Claimed battery life

10h=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

8h=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.

18h=CalculatedFrom Claimed battery life

10h=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.

Not available

50h=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

40h=CalculatedFrom Claimed battery life

Talk time (claimed)

Not available

4.5h=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.

Not available

90min1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Charging FAQ directly reports around 1.5 hours to fully charge the earbuds, converted to 90 minutes. Approximate maker estimate, with adapter and initial percentage not separately stated.

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 estimates about 1.5 hours for a full earbud charge in the case, about 3 hours for the case by cable, or 3.5 hours for the case wirelessly. Ten minutes of charging is claimed to provide four hours of earbud playback. The manual lists a 5 V / 0.8 A input. Use a certified USB-C charging cable and fully dry the buds and charging port first. ANC, LDAC, calls and volume affect runtime. LDAC and multipoint cannot be used together.2Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Component-specific full-charge times come from the current maker FAQ. The original manual table only says up to 3 hours without component scope, so that generic table alone does not establish earbud-only timing. Input 5 V / 0.8 A is literal. No accepted charging watts are derived. Current A3947C guide separately lists a compatible Anker A2337 30 W adapter, which is not a bundled adapter or device input rating.

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

5min1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 20263Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 2026

10min1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 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.

1h1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026Drained earbuds charged for five minutes through the externally powered case, then played until the first bud stopped. Same April 2024 iPhone 15 Pro and 50 percent volume conditions. Shared footnote wording mentions ANC/Transparency off, but this model lacks both modes.3Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 2026

4h1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Maker states 10 minutes for 4 hours. Public RTINGS Office paragraph explicitly describes a ten-minute charge in the case yielding four hours of playback. ANC, codec and volume for this quick-charge claim are not stated, so they remain unknown.9Reviewrtings.com/headphones/reviews/anker/soundcore-liberty-4-nc-truly-wirelessRead 8 October 2026Public Office paragraph explicitly describes four hours of playback after ten minutes of charging in the case. The numerical battery/latency/isolation tables are members-only and were not accessed or bypassed.

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.

Not available

800mAh3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026SPECS explicitly identifies 800 mAh charging-case capacity. No output capacity or energy conversion is substituted.8Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000019752/en_US/000019752.pdfRead 8 October 2026

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 pagebeatsbydre.com/earbuds/solo-budsRead 5 October 20262Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 202617Owner's manualbeatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo-buds/solobuds-sh-zm.pdfRead 5 October 2026Original Charging section seats earbuds in case and connects USB-C external power. No wired music playback or wireless charging inferred.

USB-C3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 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

180min1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Charging FAQ reports around 3 hours to fully charge the case via a wall charger, converted to 180 minutes. Separate wireless estimate is 3.5 hours. This is not a reviewer measurement.

Wireless charging

No15Reviewsoundguys.com/beats-solo-buds-review-118283Read 5 October 2026

Yes3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026

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

Not available

Qi6Reviewsoundguys.com/anker-soundcore-liberty-4-nc-review-100100Read 8 October 2026Battery section explicitly describes charging the case on a Qi pad. Magnetic alignment, Qi2 and charging wattage are not inferred.

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.

Button, Voice commands1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 20265Owner's manualsupport.apple.com/guide/beats/use-beatssolobuds-dev9529a95f9/webRead 5 October 2026

Touch1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

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

Buttons1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 20263Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 2026Original Solo Buds paragraph explicitly remaps press-and-hold to volume in iOS settings or Beats app. No touch surface or separate volume rocker.

Touch1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Maker FAQ says to customize earbud volume controls in soundcore. Original manual identifies these as touch controls. Phone-only volume controls are not substituted.

Gestures

Single, double and triple press, Press and hold5Owner's manualsupport.apple.com/guide/beats/use-beatssolobuds-dev9529a95f9/webRead 5 October 2026

Single tap: play/pause, Double tap right: next track, Double tap left: previous track, Double tap: answer call, Hold 2 seconds: end/reject call or switch ANC/transparency3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026Original manual defaults differ slightly from the SoundGuys firmware 03.82 table. Manufacturer defaults are retained. App assignments remain customizable.

Remappable controls

Yes1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 20263Press releasesilicon.co.uk/press-release/introducing-beats-solo-buds-looks-tiny-sounds-hugeRead 5 October 20265Owner's manualsupport.apple.com/guide/beats/use-beatssolobuds-dev9529a95f9/webRead 5 October 20268Owner's manualsupport.apple.com/en-euro/guide/beats/dev869599d75/webRead 5 October 2026

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Voice assistant

Siri, Default Android voice assistant2Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 2026Press-and-hold b button activates the configured iOS or Android voice assistant. No hands-free Siri activation inherited.5Owner's manualsupport.apple.com/guide/beats/use-beatssolobuds-dev9529a95f9/webRead 5 October 2026Exact chapter includes generic Hey Siri wording that conflicts with the dedicated Siri chapter explicitly requiring button controls on Solo Buds. Button activation is retained, without a hands-free keyword claim.6Owner's manualsupport.apple.com/en-euro/guide/beats/devc97d4f096/webRead 5 October 2026Dedicated current maker Siri chapter explicitly names Solo Buds among products that require on-device controls. This specific restriction takes priority over generic wording in the Solo Buds chapter. Region, language and connected-host requirements apply.

Not available

Sensors and health

3 of 9 differ

In-ear detection

No14Reviewkopfhoerer.de/test/beats-solo-budsRead 5 October 2026Exact review explicitly no auto-pause. Physical button controls do not provide a wear-detection sensor.

Yes3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026

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.

No19Retailer pagebhphotovideo.com/c/product/1827227-REG/beats_by_dr_dre_muvw3ll_a_true_wireless_earbuds.htmlRead 7 October 2026Exact US MUVW3LL/A headphone sensor inventory explicitly none. No skin-temperature sensor claim. Generic internal electronics thermal protection is not a skin sensor.

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

Yes7Retailer pagecrutchfield.com/p_318A3947Z1/Anker-Soundcore-Liberty-4-NC.htmlRead 8 October 2026Exact US Velvet Black retailer public indexed description states that HearID tests hearing and creates a tailored sound profile. This is consumer sound personalization, not medical diagnostic clearance.

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

3 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.

XS, S, M, L1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

XS, S, M, L3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026WEARING diagram explicitly shows XS, S, M and L. The reference retail box confirms four pairs with one fitted pair.

Ear tip materials

Silicone14Reviewkopfhoerer.de/test/beats-solo-budsRead 5 October 2026

Silicone7Retailer pagecrutchfield.com/p_318A3947Z1/Anker-Soundcore-Liberty-4-NC.htmlRead 8 October 2026Exact US Velvet Black retailer indexed box list explicitly states four pairs of silicone tips. The current manufacturer manual independently lists XS, S, M and L.

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

Not available

None6Reviewsoundguys.com/anker-soundcore-liberty-4-nc-review-100100Read 8 October 2026Review FAQ explicitly says there are no stabilizers or over-ear hooks. This is direct negative evidence, not an omission from a box list.

Ear tip fit test

Not available

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Dust and water rating, buds

Not available

IPX41Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

3 of 6 differ

Companion app

Beats2Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 2026

soundcore1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

App platforms

Android2Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 2026Beats app Android 2.9 or later described by exact support page. Apple controls are native device settings, not a separate iOS app.

Android, iOS1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

User firmware updates

Yes9Owner's manualsupport.apple.com/guide/beats/update-beats-dev3381eab1b/webRead 5 October 2026Current guide explicitly includes Solo Buds. Apple firmware delivered automatically near connected compatible host. Android updates through Beats app. No future feature or support-end date promised.

Yes1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Finding network

Last location in the app11Owner's manualsupport.apple.com/guide/beats/locate-your-beats-using-your-apple-device-devfa3444893/webRead 5 October 2026Current maker guide describes last connected location and reserves offline Find My network features for Beats 360. Solo Buds does not inherit a crowd network or UWB case finding.12Owner's manualsupport.apple.com/en-euro/guide/beats/devb4dda1f02/webRead 5 October 2026Beats app records Android host location when connecting or disconnecting. Supported Google Find My Device route likewise shows last connected location. Its app name does not prove offline Find Hub crowd-network support.

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.

5.7g(0.2 oz)1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

5.2g(0.2 oz)1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026Current maker specifications state 5.2 g without case for the earbud. Tip size is not named. SoundGuys lists 5.7 g per bud without claiming that value as a measurement, so it is not imported into the measured-weight field or substituted for this maker claim.

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

Width18.5Height19mm(0.7 × 0.7 in)21Maker product pagebeatsbydre.com/earbuds/solo-budsRead 7 October 2026Bud Specs explicitly Width 1.85 cm and Height 1.9 cm, converted exactly to 18.5 mm and 19 mm. Only maker-labelled width and height are retained. Length 2.05 cm is not mapped to Depth.

Not available

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

22g(0.8 oz)1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

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.

Width35Height24mm(1.4 × 0.9 in)21Maker product pagebeatsbydre.com/earbuds/solo-budsRead 7 October 2026Case Specs explicitly Width 3.5 cm and Height 2.4 cm, converted exactly to 35 mm and 24 mm. Length 6.6 cm is not mapped to Depth. No axis reordering by appearance.

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 Wireless1Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Communication certifications

Not available

Not available

FCC IDs

BCGA3150, BCGA3151, BCGA315217Owner's manualbeatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo-buds/solobuds-sh-zm.pdfRead 5 October 2026Original maker ZM034-06154-B, 24-page PDF. English pages 1 to 4 read and page 3 visually inspected. It explicitly prints BCGA3150, BCGA3151 and BCGA3152 without hyphens. All three retained, without guessing radio roles from case battery absence.

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Other certifications

EU RED 2014/53/EU, UK Radio Equipment Regulations 2017, ISED Canada IC 579C-A3150, ISED Canada IC 579C-A3151, ISED Canada IC 579C-A3152, India RoHS under E-Waste (Management) Rules, 201630Maker spec sheet (PDF)beatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo-buds/solobuds-sh-zm.pdfRead 7 October 2026Original Solo Buds safety leaflet, model A3150/A3151/A3152. English page 3 EU/UK Compliance declares Directive 2014/53/EU and Radio Equipment Regulations 2017. Same page lists ISED Canada IC 579C-A3150, 579C-A3151, 579C-A3152 beside exact hardware identifiers. English page 2 India Declaration of Conformance explicitly states RoHS under E-Waste (Management) Rules 2016. Maker regulatory declarations and registrations, not an independent audio-quality certification or sales-market expansion.

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In the box

2 of 2 differ

In the box

Beats Solo Buds earbuds, Carrying case, Ear tips in XS, S, M and L, Warranty card1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026Maker complete list. Medium tips attached. USB-C cable and power adapter are sold separately. No cable count or length stored.2Maker product pagebeatsbydre.com/support/earbuds/solo-budsRead 5 October 2026

Left and right earbuds, Charging case, Four pairs of silicone ear tips, USB-A to USB-C charging cable, Quick Start Guide, Important Safety Instructions7Retailer pagecrutchfield.com/p_318A3947Z1/Anker-Soundcore-Liberty-4-NC.htmlRead 8 October 2026Exact US Velvet Black retailer public indexed box list was captured October 8, 2026. Full ordinary web open later showed only the footer and local requests returned an access challenge. No bypass attempted. Four tip pairs include one installed pair. Charging adapter and optional soundcore Care are not listed.

Cables included

ABeats Solo Buds

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Bsoundcore Liberty 4 NC

Type	Count
USB-A to USB-C	1

Source7Retailer pagecrutchfield.com/p_318A3947Z1/Anker-Soundcore-Liberty-4-NC.htmlRead 8 October 2026Retailer explicitly lists one USB-A to USB-C cable. Retailer length 12 inches differs from SoundGuys 0.33 m, so length is omitted rather than reconciling rounded or regional cable figures.

Links

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Product page

www.beatsbydre.com/earbuds/solo-buds1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026

www.soundcore.com/products/liberty-4-nc-a3947z111Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Spec sheet

www.beatsbydre.com/earbuds/solo-buds1Maker product pagebeatsbydre.com/earbuds/solo-budsRead 5 October 2026Exact 2024 Solo Buds current technical specification and native April 2024 test footnotes read. US Matte Black reference MUVW3LL/A in structured data. No standalone maker PDF datasheet found. Published Length does not establish Depth. Explicit Width and Height are now retained as partial objects.

www.soundcore.com/products/liberty-4-nc-a3947z111Maker product pagesoundcore.com/products/liberty-4-nc-a3947z11Read 8 October 2026

Manual

support.apple.com/guide/beats/use-beatssolobuds-dev9529a95f9/web5Owner's manualsupport.apple.com/guide/beats/use-beatssolobuds-dev9529a95f9/webRead 5 October 2026Current exact Solo Buds chapter and linked pairing, charging, microphone, switching, Siri and finding chapters read. Original 24-page maker safety leaflet independently downloaded and English pages read. No standalone original Quick Start Guide found.

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdf3Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012513/en_US/000012513.pdfRead 8 October 2026Original A3947 User Manual linked by the current official service index. Its English APP, WEARING, CONTROLS, LDAC, WEARING DETECTION and SPECS sections were read. The separately listed newer A3947C guide has the same core specification table, but no universal hardware-revision equivalence is asserted.

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.

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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.

1year17Owner's manualbeatsbydre.com/content/dam/beats-support/global/product-safety-and-handling/solo-buds/solobuds-sh-zm.pdfRead 5 October 2026Original English page 4 gives one-year Apple limited hardware warranty. Statutory rights and optional extended coverage are separate.

1.5years4Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000012512/en_US/000012512.pdfRead 8 October 2026Original official QSG CUSTOMER SERVICE states an 18-month limited warranty, converted to 1.5 years. Its additional-consumer-rights note distinguishes the warranty from statutory rights. Optional paid soundcore Care is separate.

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