Earbuds / Compare

soundcore Liberty 4 Pro vs soundcore P30i

A

Product A: soundcore

Liberty 4 Pro

86 of 166 known

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B

Product B: soundcore

P30i

75 of 166 known

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Every value links to where we found it.

Only differences

Asoundcore Liberty 4 Pro

Bsoundcore P30i

General

4 of 8 differ

Series

Not available

Not available

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

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

A3959, A3959Z11, A3959Z21, A3959Z31, A3959Z51, A3959Z61, A3959311, A3959321, A3959331, A3959351, A3959361, A3959N11, A3959N21, A3959N31, A3959N51, A3959N611Maker product pageankerjapan.com/products/a3959Read 6 October 2026Product model row: A3959N11 Black, A3959N21 White, A3959N31 Blue, A3959N51 Pink, A3959N61 Green.3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959QSG.pdfRead 6 October 2026Cover: Model A3959 / A3959L / A3959R.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026US SKUs from the store's product data (products/soundcore-p30i.js): A3959Z11 Black, A3959Z21 White, A3959Z31 Sky Blue, A3959Z61 Green, A3959Z51 Pink.6Maker product pageuk.soundcore.com/products/a3959-soundcore-p30iRead 6 October 2026UK SKUs from the store's product data: A3959311 Black, A3959321 White, A3959331 Sky Blue, A3959361 Green, A3959351 Pink. They carry the same barcodes as the US Zxx SKUs, so the GTINs are stored on the US rows only.7Regulatory filingcdn.shopify.com/s/files/1/0917/4807/3750/files/A3959_soundcore_P30i_R50i_EU_Declaration.pdfRead 6 October 2026EU and UK Declaration of Conformity: product names soundcore P30i and soundcore R50i NC, model no. A3959. The R50i NC alias comes from this document.

GTIN / EAN

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.

194644186333, 194644193515, 194644193508, 194644193492, 194644193485, 4571411218361, 4571411218378, 4571411218385, 4571411218392, 45714112184081Maker product pageankerjapan.com/products/a3959Read 6 October 2026JAN barcodes from the store's product data (products/a3959.js): N11 4571411218361, N21 4571411218378, N31 4571411218385, N51 4571411218392, N61 4571411218408.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026US barcodes: Z11 194644186333, Z21 194644193515, Z31 194644193508, Z61 194644193485, Z51 194644193492.

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

Not available

Not available

Status

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.

Available5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026US store sells all five colours at 49.99 USD.

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.

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.

Not available

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

$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.

Not available

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.

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.

US, GB, SE, JP1Maker product pageankerjapan.com/products/a3959Read 6 October 20265Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026US store.6Maker product pageuk.soundcore.com/products/a3959-soundcore-p30iRead 6 October 2026UK store sells the A3959311 to A3959361 SKUs at 49.99 GBP.8Maker product pageankernordics.com/products/soundcore-p30iRead 6 October 2026Anker Nordics store lists the A3959311, A3959321, A3959331, A3959351 and A3959361 SKUs with prices in SEK.

ColoursiThe maker's own colour names

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.

Black, White, Sky Blue, Pink, Green, Blue1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Japanese colour names ブラック, ホワイト, ブルー, ピンク, グリーン, translated as Black, White, Blue, Pink, Green.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 20266Maker product pageuk.soundcore.com/products/a3959-soundcore-p30iRead 6 October 2026

Segment

Music3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 2026

Not available

Design

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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-ear3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 2026

In-ear4Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 6 October 2026FAQ: choose an ear tip size that gives a firm fit and seal (密閉感) in the ear. Silicone-tip style in-ear buds.

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

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

Stem5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Product photos show stem buds.

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

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

Either bud4Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 6 October 2026FAQ: either the left or the right earbud can be used alone.

RGB lighting

Not available

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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.

Asoundcore 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.

Bsoundcore P30i

Type	Diameter (mm)	Count per earbud
Dynamic	10	1

Source1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Specifications: 10 mm dynamic driver.2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Specifications table: driver unit 10 mm.9Review52audio.com/archives/219042.htmlRead 7 October 2026Complete front-cavity teardown shows the single 10 mm dynamic audio transducer, with separate microphone. No microphone counted as audio driver.

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

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

Dynamic1Maker product pageankerjapan.com/products/a3959Read 6 October 2026

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

10.5mm=CalculatedFrom Drivers per bud

10mm=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.

2=CalculatedFrom Drivers per bud

1=CalculatedFrom Drivers per bud

Diaphragm material

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.

Not available

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

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.

Min20 HzMax20 kHz2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Specifications table: 20-20 kHz.

Impedance

Not available

16Ω2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Specifications table: 16 ohms.

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

Not available

Not available

Sensitivity reference

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

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Personalised soundiA profile from a hearing test or ear scan

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

Not available

Onboard EQ

Not available

Not available

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

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.

818Reviewhifireport.com/soundcore-p30i-by-anker-noise-cancelling-earbuds-reviewRead 7 October 2026App and Customization section explicitly states eight-band custom EQ for P30i. Hardware/app feature statement, not a measurement. App/firmware version unstated. Does not establish onboard EQ storage. 22 presets is a separate count.

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

Not available

soundcore Signature, Bass Booster, Bass Reducer, Treble Booster, Acoustic, Flat13Maker product pageservice.soundcore.com/article-description/How-to-Improve-the-Bass-Quality-of-Your-soundcore-P30i-R50i-NC-EarbudsRead 7 October 2026Exact Bass Quality article: Bass Booster and Bass Reducer. Other four named presets explicitly visible in Scarbir P30i app screenshot: soundcore Signature, Treble Booster, Acoustic, Flat. Total 22 options is not a complete named list. No unpictured names guessed.14Reviewscarbir.com/tws/soundcore-p30i-reviewRead 7 October 2026Exact P30i Sound Effects screenshot read at full size: Bass Reducer, Treble Booster, soundcore Signature, Acoustic, Flat. Custom is a control and More is navigation, not named presets. Maker Bass Booster also verified.

Volume limit

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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 (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.

3D sound5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Maker comparison table: 3D sound ticked for P30i. No platform condition stated.

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

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.

Not available

Noise cancelling

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Active noise cancelling

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.

Yes1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Feature text: active noise cancelling.

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

Not available

Hybrid9Review52audio.com/archives/219042.htmlRead 7 October 2026External MEMS used for voice calls and noise cancellation. Internal microphone explicitly feedback ANC. Classification from published outer noise-pickup and inner feedback roles, rather than adaptive control wording. Exact White A3959 inspection.

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.

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.

49Review52audio.com/archives/219042.htmlRead 7 October 2026Two microphones per bud: external call/noise cancellation plus internal feedback ANC. Both stated ANC roles counted across stereo pair, shared call/ANC capsule counted once. Physical total also four. Tested White A3959.

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

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.

Yes4Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 6 October 2026FAQ: the automatic mode sets noise cancelling to suit the environment and the ear shape. A manual mode with levels also exists.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Feature text: with adaptive technology the P30i detects external sound and automatically selects a level of noise cancelling.

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

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.

510Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 7 October 2026Manual ANC mode and level 5 setting in FAQ. Scarbir exact app test explicitly describes manual levels 1 to 5. Five strengths exclude Off, Transparency and Adaptive modes.14Reviewscarbir.com/tws/soundcore-p30i-reviewRead 7 October 2026Review explicitly names Manual ANC levels 1 to 5. Firmware version not stated.

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

42dB5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Feature text: reduce noise by up to 42 dB. No frequency or test condition given.

Transparency mode

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

Yes2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Controls table: hold 2 seconds to switch between noise cancelling, transparency (外音取り込み) and normal.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026

Adjustable transparency

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.

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

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.

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.

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.

Yes4Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 6 October 2026FAQ: the Wind Noise Reduction (風切り音の低減) setting in the Soundcore app detects wind noise and reduces it automatically. Selectable processing.

Measured

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

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.

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

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

Not available

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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

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

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

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.

Speech was audible with nearby chatter or a radio. Wind made the voice thinner.16Measurementscarbir.com/tws/soundcore-p30i-reviewRead 7 October 2026Own subjective call tests: speech with chatter/radio indoors and wind outdoors. The exact review describes voice thinning in wind. Author method page says calls tested quiet indoors, simulated/background voices indoors and walking against wind outdoors. Exact host, codec, volume and firmware unstated, no numeric noise-handling inference. Source: https://www.scarbir.com/about. Battery observations are extrapolated and not stored as measured runtime.

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

Not available

Not available

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

Not available

Not available

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

Not available

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

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

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.

Asoundcore 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.

Bsoundcore P30i

Not available

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

5.7h=CalculatedFrom Battery life (measured)

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

4.6g(0.2 oz)11Measurement52audio.com/archives/219042.htmlRead 7 October 2026Own scale measurement: one earbud approximately 4.6 g. 52Audio teardown/unboxing measurement of White P30i A3959. Tip inclusion/size and scale model not stated. Approximate single-bud result. Combined 54.8 g is not empty-case mass. Maker 4.3 g preserved.

Microphones and calls

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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.

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

45Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Maker comparison table, Calls row: 4 Mics with AI.

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.

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.

49Review52audio.com/archives/219042.htmlRead 7 October 2026Teardown summary: two MEMS microphones in each earbud. Two per bud across pair. External R41F1CQT and internal R41F1PQT are physical capsules. Maker 4 Mics call row corroborates total. No sensor counted as microphone.

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

Not available

Not available

Mic noise reduction

AI3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 2026

AI5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Maker comparison table, Calls row: 4 Mics with AI.

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

Not available

Not available

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

Not available

Not available

SidetoneiHear your own voice in calls

Not available

Not available

Connectivity

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Chip

Not available

JieLi JL7016G69Review52audio.com/archives/219042.htmlRead 7 October 2026Earbud mainboard: JL7016G6 Bluetooth audio SoC. Inspected White P30i A3959. Case IP5521 power-management chip is not audio chipset.

Connections

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

Bluetooth1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Communication: Bluetooth 5.4. No wired or dongle audio connection listed.

Bluetooth

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

5.41Maker product pageankerjapan.com/products/a3959Read 6 October 20262Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 20265Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026

Bluetooth codecs

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

SBC, AAC1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Supported codecs: SBC / AAC.

Bluetooth profiles

Not available

Not available

LE Audio

Not available

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.

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

Yes1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Feature text: multipoint connection to two devices at the same time.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026

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

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

22Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Multipoint section: connect to two devices at the same time through the Soundcore app settings.

Multipoint with LDACiMany buds turn multipoint off on LDAC

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.

Not available

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

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

Not available

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

10m1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

10m2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Specifications table: Bluetooth operating range 10 m.

Wireless receiveri2.4 GHz dongle

Not available

Not available

Receiver connector

Not available

Not available

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

Not available

Not available

Latency

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.

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.

Windows, macOS, Android, iOS10Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 7 October 2026Exact FAQ separate Windows/Mac, Android and iPhone connection sections. Documented basic Bluetooth audio routes. App platforms remain iOS/Android only.

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.

Asoundcore Liberty 4 Pro

Not available

Bsoundcore P30i

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

Source10Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 7 October 2026Windows: P30i hands-free microphone/speaker. Mac: input/output P30i. Android/iPhone Bluetooth pairing/audio instructions. Windows conferencing apps Zoom/Teams use hands-free input/output, music uses stereo. Mac explicitly selects P30i input/output. Phone platform-specific microphone flags not asserted from generic call compatibility.

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

Asoundcore 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

Bsoundcore P30i

Feature	Needs
Multipoint	Enable Dual Connections in the soundcore app
Earbud volume controls	Assign volume adjustment in the soundcore app Controls menu
Voice assistant controls	Assign the action in the soundcore app and use a compatible source-device assistant. Single tap cannot invoke the assistant
Manual ANC levels	Select Manual noise cancellation in the soundcore app

Source10Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 7 October 2026FAQ multipoint, manual ANC, volume and voice-assistant control setup sections. Requirements apply to existing maker features. No unknown firmware minimum invented.

Official licence

Not available

Not available

Battery and charging

8 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.

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.

60mAh9Review52audio.com/archives/219042.htmlRead 7 October 2026Earbud cell 1154H label: rated 60 mAh, 0.231 Wh, nominal 3.85 V. Exact White P30i A3959 teardown, 2024-11-15. Cell rating, not measured discharge capacity. No inferred voltage conversion.

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.

Asoundcore 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.

Bsoundcore P30i

Mode	Includes case recharges	Hours (h)
ANC off	No	10
ANC off	Yes	45
ANC on	No	7
ANC on	Yes	30
Transparency	No	6.5
Transparency	Yes	28.5
Call	No	4.5

Source1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Specifications: normal mode up to 10 h earbuds only and 45 h with case. ANC mode up to 7 h and 30 h.2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Specifications table: about 10 h / 45 h with ANC off and about 7 h / 30 h with ANC on.4Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 6 October 2026FAQ on playback per charge: normal 10 h (45 h with case), ANC 7 h (30 h), transparency 6.5 h (28.5 h), calls 4.5 h with ANC off and 4.2 h with ANC on. Default settings, 50 % volume. The call row stores the ANC-off figure.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Feature text and comparison table: 10 h single charge, 45 h with case.

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.

10h=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.

7.5h=CalculatedFrom Claimed battery life

7h=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.

10h=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.

40h=CalculatedFrom Claimed battery life

45h=CalculatedFrom Claimed battery life

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

30h=CalculatedFrom Claimed battery life

30h=CalculatedFrom Claimed battery life

Talk time (claimed)

4.5h=CalculatedFrom Claimed battery life

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.

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.

60min1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Specifications: about 1 hour for the earbuds.2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Specifications table: up to 1 hour for the earbuds.

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.

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

Not available

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

5min1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

10min2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Charging section: a 10-minute charge gives 2 hours of playback. ANC state is not stated.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Comparison table: 10M = 2H.

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.

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.

2h2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Charging section: a 10-minute charge gives 2 hours of playback. ANC state is not stated.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026

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.

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.

700mAh2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Maker specifications 700 mAh/2.66 Wh row lacks a component label. 52Audio exact P30i White A3959 charging-case disassembly independently identifies the 13450HV cell as 700 mAh/2.66 Wh/3.8 V. No assumed cell voltage or size-only inference remains.9Review52audio.com/archives/219042.htmlRead 7 October 2026Charging-case teardown battery 13450HV label: rated 700 mAh, 2.66 Wh, nominal 3.8 V. This physically identifies component and rating. Maker ambiguous 700 mAh row is preserved with exact component corroboration.

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-C1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

USB-C1Maker product pageankerjapan.com/products/a3959Read 6 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.

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.

150min1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Specifications: about 2.5 hours for the charging case.2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Specifications table: up to 2.5 hours for the charging case.

Wireless charging

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.

No5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Maker comparison table: Wireless Charging crossed for P30i, ticked for P40i.

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.

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.

Not available

Screen on case

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.

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.

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

Touch2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Pairing section: hold the touch area of both earbuds for 3 seconds.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Maker comparison table: Touch Control.

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

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

Touch12Maker product pageservice.soundcore.com/article-description/soundcore-P30i-R50i-NC-Earbuds-FAQRead 7 October 2026FAQ 6: Controls customize volume adjustment via earbuds. Exact P30i/R50i NC touch interface. Requires soundcore app to assign. Scarbir demonstrates single-tap assignment.

Gestures

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.

Double tap, Press and hold for 2 seconds2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Controls table: double tap (play/pause, next track, answer call) and press and hold for 2 seconds (mode switch, reject or end call).

Remappable controls

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

Yes2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Controls section: controls can be customised in the Soundcore app.

Voice assistant

Not available

Siri10Maker product pageankerjapan.com/blogs/faq/soundcore-p30iRead 7 October 2026FAQ: assign Voice Assistant in Controls, plus Siri-volume troubleshooting. Native source-device Siri, not an onboard assistant or independent wake-word engine. Assistant action cannot be assigned to single tap. Other assistants unnamed and omitted.

Sensors and health

3 of 9 differ

In-ear detection

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

Not available

Sensors

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.

Not available

Heart rate sensor

Not available

Not available

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

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

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.

Not available

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.

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

S, M, L2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Wearing section: S, M and L tips shown. M tips are fitted.

Ear tip materials

Not available

Silicone9Review52audio.com/archives/219042.htmlRead 7 October 2026Teardown conclusion: three pairs of soft silicone ear tips. Factory supplied tips, not optional foam replacements. Existing sizes S/M/L preserved.

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

Not available

Not available

Ear tip fit test

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

Yes2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Wearing section: fit test in the Soundcore app.

Dust and water rating, buds

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.

IP541Maker product pageankerjapan.com/products/a3959Read 6 October 2026Specifications: IP54, earbuds only.5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026Maker comparison table: Waterproof IP54.

Dust and water rating, case

Not available

Not available

Water resistance depth

Not available

Not available

Software

1 of 6 differ

Companion app

soundcore1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

soundcore2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026App section: Soundcore app for EQ, find earbuds, noise cancelling, multipoint and firmware updates.

App platforms

Android, iOS1Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000021411/en_US/000021411.pdfRead 20 October 2026

iOS, Android2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026App section shows the Google Play and App Store badges.

User firmware updates

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

Yes2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Firmware update section: the app notifies and installs new firmware.

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

Dimensions and weight

3 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.

5.5g(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.

4.3g(0.2 oz)1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Specifications: about 4.3 g per earbud. The 52.8 g figure includes the earbuds and is not the empty case weight.

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

Not available

Not available

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

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.

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.

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.

Not available

Certifications

2 of 3 differ

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

Hi-Res Audio 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.

Not available

Communication certifications

Not available

Not available

FCC IDs

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.

2AOKB-A3959L, 2AOKB-A3959R3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959QSG.pdfRead 6 October 2026Back page: left earbud A3959L FCC ID 2AOKB-A3959L, right earbud A3959R FCC ID 2AOKB-A3959R. No case FCC ID printed.

Other certifications

Not available

EU RED 2014/53/EU, EU RoHS 2011/65/EU and 2015/86315Maker spec sheet (PDF)cdn.shopify.com/s/files/1/0917/4807/3750/files/A3959_soundcore_P30i_R50i_EU_Declaration.pdfRead 7 October 2026Maker EU/UK Declaration V3.0, 2025-07-15: exact P30i/R50i NC A3959, Directives 2014/53/EU and 2011/65/EU with 2015/863 amendment. Manufacturer conformity declaration, not independent certification. EN 303 417 listing does not override direct maker no-wireless-charge comparison.

In the box

2 of 2 differ

In the box

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.

Earbuds, Charging case, Three sizes of ear tips, USB-C and USB-A cable, Quick start guide, Safety manual1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Package contents, translated from Japanese: Soundcore P30i, charging case, ear tips (3 sizes), USB-C and USB-A cable, quick start guide and safety manual.

Cables included

Asoundcore Liberty 4 Pro

Not available

Bsoundcore P30i

Type	Count
USB-A to USB-C	1

Source1Maker product pageankerjapan.com/products/a3959Read 6 October 2026Package contents: one USB-C and USB-A cable.

Links

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Product page

us.soundcore.com/products/a3954-liberty-4-pro-tws-earbuds3Maker product pageus.soundcore.com/products/a3954-liberty-4-pro-tws-earbudsRead 20 October 2026

www.soundcore.com/products/soundcore-p30i5Maker product pagesoundcore.com/products/soundcore-p30iRead 6 October 2026

Spec sheet

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Manual

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.

lp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdf2Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959Manual.pdfRead 6 October 2026Japanese user manual. The pairing step names soundcore P30i.

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

0 of 1 differ

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

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

1.5years3Owner's manuallp.ankerjapan.com/hubfs/aoos/manual/A3959QSG.pdfRead 6 October 2026Japan: 18-month warranty, extended to 24 months for Anker Japan members. Market-specific.

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