Earbuds / Compare

Beats Solo Buds vs soundcore Liberty 4 Pro

A

Product A: Beats

Solo Buds

74 of 166 known

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B

Product B: soundcore

Liberty 4 Pro

86 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 Pro

General

5 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.

A3954, A3954ZF1, A3954Z21, A3954ZG14Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbuds.jsRead 20 October 2026

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.

194644297237, 194644297206, 1946442074344Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbuds.jsRead 20 October 2026US store barcodes per colour. The EU store uses the same barcodes for its own SKU names.

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

Available4Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbuds.jsRead 20 October 2026The US store lists all three colours as available 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

soundcore Liberty 5 Pro11Press articlephileweb.com/sp/news/d-av/202605/27/65209.htmlRead 23 October 2026PhileWeb's launch report names the Liberty 4 Pro as the previous model of the Liberty 5 Pro series.12Press articleexpertreviews.co.uk/technology/headphones-audio/soundcore-liberty-5-pro-reviewRead 23 October 2026Expert Reviews names the Liberty 4 Pro as a predecessor of the Liberty 5 Pro.

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.

$129.997Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026Spec box price $129.99. Digital Trends and Mezha also report $130 and $129 at launch. The maker's US store now lists $149.99.

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

US, GB, EU, JP4Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbuds.jsRead 20 October 2026Also sold through the UK, EU and Japan stores of the maker.

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.

Glossy Black, Pearl White, Blue4Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbuds.jsRead 20 October 2026US store lists Glossy Black, Pearl White and BIue, with a typo in the last name. Stored as Blue. Anker Japan sells Midnight Black, Pearl White, Sky Blue and Deep Green under other SKUs, and the EU store lists more colours.

Segment

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

Music3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 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-ear3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 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

Stem3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 2026Stemmed earbuds with a control area on the stem.

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 bud1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

RGB lighting

Not available

Not available

Drivers and sound

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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 Pro

Type	Role	Diameter (mm)	Count per earbud
Dynamic	Woofer	10.5	1
Dynamic	Tweeter	4.6	1

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026SPECS table lists 10.5mm and 4.6mm dynamic drivers. The US page calls the second a titanium-coated tweeter and Anker Japan names the 10.5 mm driver for bass and the 4.6 mm driver for mid and high range. One of each per earbud.

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.

Dynamic1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

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

Not available

10.5mm=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

2=CalculatedFrom Drivers per bud

Diaphragm material

Not available

Titanium-coated (tweeter)3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 2026US page names a titanium-coated tweeter next to the 10.5mm driver. Only the tweeter coating is stated.

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

Not available

Min14 HzMax40 kHz1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026SPECS table prints 14Hz - 40kHz with no codec or conditions.

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

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

Yes7Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026

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

87Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026Eight-band custom equalizer in the soundcore app. The app also has 22 presets.

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

Not available

Not available

Volume limit

Not available

Not available

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.

Spatial Audio (Music, Podcast, Movie and Game modes)1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Four Spatial Audio modes: Music, Podcast, Movie and Game. Spatial Audio is not supported when LDAC is on.

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.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Spatial Audio Music Mode offers head tracking or fixed. Podcast, Movie and Game modes are listed without head tracking.

Noise cancelling

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Active noise cancelling

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

Yes3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 2026Seven sensors and real-time adaptive noise reduction that adapts every 0.3 seconds.

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

Not available

Not available

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

Not available

69Press articlemezha.ua/en/2024/10/07/anker-soundcore-liberty-4-pro-is-presented-tws-headphones-with-anc-and-up-to-40-hours-of-battery-life-for-129/ampRead 20 October 2026Mezha describes seven sensors as six microphones and a barometer. Calls also use the six microphones.10Press articlemacerkopf.de/2025/01/07/anker-soundcore-liberty4-pro-ces2025Read 20 October 2026Six noise cancelling sensors plus a barometric pressure sensor for an airplane mode.

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

Not available

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Ambient Sound section: ANC levels 6 to 10 adapt to the ears and environment.

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

Not available

51Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026ANC is level 6 to 10, so 5 levels. Transparency is level 1 to 5. Normal sits between them.

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

Not available

Not available

Transparency mode

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

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

Adjustable transparency

Not available

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Transparency is level 1 to 5 on the slider and in the app.

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

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Easy Chat lowers music volume and enables transparency while you talk, then returns to the ANC level after 5, 10 or 15 seconds of silence. ANC mode only.

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

Yes3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 2026Six microphones, a noise cancelling algorithm and wind noise reduction technology for calls.

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.

SoundGuys found the default sound follows its headphone preference curve closely across the mids and highs, with more emphasis on bass below 200 Hz.7Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026Objective measurements section. SoundGuys compares the default sound with its headphone 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

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.

SoundGuys found voices clear in its ideal-conditions demo. In simulated office and street noise some background noise gets through while the voice stays in focus. Simulated wind and reverberant space were handled well. These are qualitative results.7Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026SoundGuys microphone demos in ideal, office, street, windy and reverberant conditions. No numerical speech bandwidth or noise score is stored.

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 Pro

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 Pro

ANC	Hours (h)
Yes	5.7

Source7Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 20265 h 42 min with ANC enabled, stored as 5.7 h. One-week test of a maker-provided unit on earbud firmware 03.17, case firmware 02.56 and soundcore app 5.5.0. SoundGuys plays real music peaking at 75 dBSPL. Codec and host are not stated.

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)

5.7h=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

Not available

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

63Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 20266-Mic AI Clear Calls.

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

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.

65Maker product pageankerjapan.com/products/a3954Read 20 October 2026Six microphones are used for call noise removal and the seven sensors for ANC include a new barometric sensor, so six microphones in total.

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

AI3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 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

Bluetooth1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

Bluetooth

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

5.31Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

Bluetooth codecs

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

SBC, AAC, LDAC5Maker product pageankerjapan.com/products/a3954Read 20 October 2026Comparison table lists SBC / AAC / LDAC.

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

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

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

Not available

25Maker product pageankerjapan.com/products/a3954Read 20 October 2026Multipoint connects to two devices at the same time.

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

No1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026LDAC section says that with two devices connected the app warns that LDAC is not supported. The Anker Japan comparison table says LDAC can be used with multipoint. The manual is kept.

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 Pair1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

Not available

10m1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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

None of 3 known

Low latency mode

Not available

Not available

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, macOS7Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026Reviewer used the earbuds with an iPhone 15 Pro, notes LDAC needs a compatible Android phone and lists computer audio setup in the maker FAQ.

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 Pro

Not available

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 Pro

Feature	Needs
LDAC	Android 8.0 or later, enabled as Preferred audio quality in the soundcore app. Not available while connected to two devices. Spatial Audio is off while LDAC is on. LDAC raises power use and shortens playtime.
Google Fast Pair	Android 6.0 or later.
Head tracking	Spatial Audio Music mode set to head tracking in the soundcore app. Fixed mode has no head tracking.
Easy Chat	Enable in the soundcore app. Available only in ANC mode.
Touch bar menu	The case menu shows only Ambient Sound by default. Add Spatial Audio, Atmospheric, Find Device and Remote Camera in the soundcore app.

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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.

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.

56mAh1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026SPECS table lists Earbuds 56mAh x 2 and Charging Case 580mAh. Stored per earbud. Typical or rated is not stated.

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 Pro

Mode	Includes case recharges	Hours (h)
ANC off	No	10
ANC off	Yes	40
ANC on	No	7.5
ANC on	Yes	30
Transparency	No	7.5
Transparency	Yes	30
Call	No	4.5

Source1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026SPECS table: ANC off up to 10 h and 40 h with case, ANC on up to 7.5 h and 30 h. Anker FAQ test was at default settings, normal mode and 50 percent volume. LDAC increases power use and reduces playtime.2Maker product pageservice.soundcore.com/article-description/Different-Playtimes-of-soundcore-Liberty-4-Pro-from-a-Single-Charge-With-the-Charging-CaseRead 20 October 2026Maker FAQ: ANC 7.5 h and 30 h with case, normal 10 h and 40 h, transparency 7.5 h and 30 h. Calls 4 h with ANC, 4.5 h in normal mode and 4 h with transparency. The call row stores the normal-mode 4.5 h. Tested in the Anker laboratory at default settings, normal mode and 50 percent volume.

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

7.5h=CalculatedFrom Claimed battery life

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

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

40h=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

30h=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

40min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026SPECS table says charging time for earbuds up to 40 minutes. SoundGuys lists 45 minutes.

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 manual gives up to 40 minutes for the earbuds. An empty case takes 2.5 hours by cable and 3.5 hours wirelessly. Case input is 5 V 1 A. The case stops charging the earbuds when its battery drops below 20 percent. Dry the earbuds and the USB-C port before charging.1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

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

5min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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

4h1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Charging section says a 5-minute charge of the earbuds gives 4 hours of playtime. ANC, volume and codec are not stated.

Charging case

5 of 10 differ

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

Not available

580mAh1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026SPECS table lists Charging Case 580mAh. Typical or rated is not stated.

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-C1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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

150min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Charging section says recharging the case with the earbuds removed takes 2.5 hours by cable and 3.5 hours by wireless charging.

Wireless charging

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

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Charging section says to place the case at the centre of a wireless charger. No standard is named.

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

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Reset section says a notification sound plays from the charging case. SoundGuys says the app can play a tone from either the earbuds or the case.7Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026The Find Device section of the app plays a loud tone from either the earbuds or the charging case.

Screen on case

Not available

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Smart Display on the charging case with a touch bar.

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

Pressure, Swipe1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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.

Swipe1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

Gestures

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

Squeeze once on either earbud: play or pause, or answer a call, Squeeze twice on the right earbud: next track, Squeeze twice on the left earbud: previous track, Tap and hold either earbud for 2 seconds: switch between ANC and transparency, or reject or end a call, Slide up on either earbud: volume up, Slide down on either earbud: volume down, Pinch both earbud stems for 3 seconds: pair a second device1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026Controls table for dual earbuds. Squeeze controls can be customised in the app. Using a single earbud, squeeze twice plays the next track and there is no previous-track gesture.

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

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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

4 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.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

Sensors

Not available

Barometric pressure sensor5Maker product pageankerjapan.com/products/a3954Read 20 October 2026Seven sensors for ANC, with a new barometric pressure sensor that works when Airplane Mode is turned on in the soundcore app.9Press articlemezha.ua/en/2024/10/07/anker-soundcore-liberty-4-pro-is-presented-tws-headphones-with-anc-and-up-to-40-hours-of-battery-life-for-129/ampRead 20 October 2026Seven sensors including one barometer.10Press articlemacerkopf.de/2025/01/07/anker-soundcore-liberty4-pro-ces2025Read 20 October 2026Barometric pressure sensor for the airplane mode. The same article gives a 149.99 euro price at its January 2025 launch while other reports say 129.99, so no euro price is stored.

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

Yes7Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026HearID Sound Test creates an EQ preset for hearing differences. It is consumer sound personalization, not a medical test.

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.

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

XXS, XS, S, M, L, XL1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

Ear tip materials

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

Not available

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

Not available

Not available

Ear tip fit test

Not available

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

Dust and water rating, buds

Not available

IP551Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026SPECS table lists IP55 for the earbuds. SoundGuys and press list IPX5. Anker Japan says the case is not rated.

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

soundcore1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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, iOS1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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.

Yes1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 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

5.5g(0.2 oz)7Measurementsoundguys.com/anker-soundcore-liberty-4-pro-review-125410Read 20 October 2026Spec box lists earbud 5.5 g and case 51 g. It does not say whether weighed by SoundGuys. Amazon US lists 62 g in total, which matches 2 x 5.5 g plus 51 g.

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

51g(1.8 oz)8Retailer pageamazon.com/dp/B0DBHPZLCCRead 20 October 2026Amazon US detail table lists carrying case weight 51 g. SoundGuys also lists case 51 g in its review spec box and 52 g with case on its product page.

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.

Width62Height29.6Depth65mm(2.4 × 1.2 × 2.6 in)8Retailer pageamazon.com/dp/B0DBHPZLCCRead 20 October 2026Amazon US detail table labels carrying case length 6.5 cm, width 6.2 cm and height 29.6 mm. Length is stored as depth. SoundGuys lists 65 x 62 x 30 mm with no axis names.

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 Wireless9Press articlemezha.ua/en/2024/10/07/anker-soundcore-liberty-4-pro-is-presented-tws-headphones-with-anc-and-up-to-40-hours-of-battery-life-for-129/ampRead 20 October 2026Mezha says the earbuds are Hi-Res Audio Wireless certified.10Press articlemacerkopf.de/2025/01/07/anker-soundcore-liberty4-pro-ces2025Read 20 October 2026Names the Hi-Res Audio Wireless standard.

Communication certifications

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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.

2AOKB-A3954, 2AOKB-A3954L, 2AOKB-A3954R6Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3954QSG.pdfRead 20 October 2026Quick Start Guide prints FCC ID 2AOKB-A3954 for the model A3954 and 2AOKB-A3954L and 2AOKB-A3954R for the left and right earbuds.

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

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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

Earbuds, Charging case, Ear tips in six sizes (XXS, XS, S, M, L, XL), size M pre-installed, USB-C charging cable8Retailer pageamazon.com/dp/B0DBHPZLCCRead 20 October 2026Amazon US built-in media list: cable, charging case, XXS/XS/S/M/L/XL ear tips with size M pre-installed, and the earbuds.

Cables included

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Links

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Product page

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

us.soundcore.com/products/a3954-liberty-4-pro-tws-earbuds3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 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.

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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/000021411/en_US/000021411.pdf1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026English user guide A3954, published in the service index on 2025-09-01.

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

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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.

1.5years8Retailer pageamazon.com/dp/B0DBHPZLCCRead 20 October 2026Amazon US listing says 18 months warranty.

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