Earbuds / Compare

Skullcandy Method 540 ANC vs soundcore Liberty 4 Pro

A

Product A: Skullcandy

Method 540 ANC

59 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

ASkullcandy Method 540 ANC

Bsoundcore Liberty 4 Pro

General

5 of 8 differ

Series

Method1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Maker line name Method, as in Method 360 ANC.

Not available

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

S2MFW-T001, S2MFW-T987, S2MFW-T7401Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Store product data SKUs: S2MFW-T001 Bone, S2MFW-T987 Primer, S2MFW-T740 True Black.2Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbuds.jsonRead 15 October 2026Store product data SKUs for the three colours.

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

GTIN / EAN

Not available

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.

8 January 20268Press articletechradar.com/audio/earbuds-airpods/skullcandys-new-earbuds-put-ai-in-your-ears-but-theres-a-catchRead 15 October 2026Article dated 8 January 2026: the newly launched Method 540 ANC.9Reviewtechradar.com/audio/earbuds-airpods/skullcandy-method-540-reviewRead 15 October 2026Review: unveiled on January 8, 2026 at the annual CES tech conference.

Not available

Status

Available1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Store page has an Add to cart button at 149.99 USD.8Press articletechradar.com/audio/earbuds-airpods/skullcandys-new-earbuds-put-ai-in-your-ears-but-theres-a-catchRead 15 October 2026Available now in the US per the article.

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.

$149.991Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026US store price 149.99 USD, the same as the launch reporting. Excludes sales tax.8Press articletechradar.com/audio/earbuds-airpods/skullcandys-new-earbuds-put-ai-in-your-ears-but-theres-a-catchRead 15 October 2026Available now in the US for 149.99 USD.

$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.

US, GB, EU, CA1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026US store. The UK, EU and Canada stores list the same three SKUs in their product data.3Maker product pageskullcandy.co.uk/products/method-540-anc-noise-canceling-earbuds.jsonRead 15 October 2026UK store product data lists the same SKUs, priced in GBP. GBP is not stored.4Maker product pageskullcandy.eu/en-de/products/method-540-anc-noise-canceling-earbuds.jsonRead 15 October 2026EU store product data lists the same SKUs, priced in EUR. No launch price source was found for the EU, so no EUR price is stored.5Maker product pageskullcandy.ca/products/method-540-anc-noise-canceling-earbuds.jsonRead 15 October 2026Canada store product data lists the same SKUs, priced in CAD.

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

Bone, Primer, True Black1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Colour selector: Bone, Primer and True Black. TechRadar saw only black and white at its review time.2Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbuds.jsonRead 15 October 2026Store product data: option values Bone, Primer and True Black.

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 pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Maker sells it as noise canceling earbuds for everyday and on-the-go listening. The store tags include gym and travel. Stored as music, not as sport.

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

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-ear1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Page: ear gels and fit fins in S, M and L. The store tags the product as in ear.

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 pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Page gallery shows a compact earbud body with a gel tip and no stalk.

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 bud1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Page feature list: Use Either Bud Solo.

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.

ASkullcandy Method 540 ANC

Diameter (mm)
12

Source1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Technical Specifications: Driver Diameter 12mm. The page does not state the driver type, the role or the count per earbud.9Reviewtechradar.com/audio/earbuds-airpods/skullcandy-method-540-reviewRead 15 October 2026Review: 12mm drivers with tuning by Bose.

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.

Not available

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.

12mm=CalculatedFrom Drivers per bud

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.

Not available

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.

Min20 HzMax20 kHz1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Technical Specifications: Frequency Response 20Hz - 20KHz. Test conditions are not stated.

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

16Ω1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Technical Specifications: Impedance 16 Ohm.

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

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

Not available

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

Not available

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

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.

51Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Customizable 5-Band EQ Mode.6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Preset EQ and custom 5-band EQ section.

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.

Music, Bass Boost, Podcast1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: 3 Preset EQ modes (Music, Bass Boost and Podcast). The help page adds a Custom mode, which is not stored as a preset.6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Preset EQ section lists Music, Bass Boost, Podcast and Custom. One sentence also names movies, which the list does not. Custom is not stored as a preset.

Not available

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.

Not available

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.

Not available

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

Yes1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Adjustable 4-Mic Active Noise Canceling.

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.

Hybrid7Maker product pageskullcandy.com/blogs/the-feed/sound-by-bose-method-360-540-ancRead 15 October 2026Maker blog: adjustable 4-mic hybrid ANC. The same blog lists 42 hours with ANC off, wear detection and LE Audio in a side-by-side table that shares values with the Method 360 ANC. Those three claims are not stored because the product page and help page do not state them.

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.

41Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: adjustable 4-mic active noise canceling. Four microphones across the pair.

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

Yes1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Adjustable Stay-Aware Mode.

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

Adjustable transparency

Yes1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Adjustable Stay-Aware Mode. The help page describes a slider in the app.6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Adjustable ANC and Stay-Aware section: a slider in the app sets the Stay-Aware level.

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

Not available

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

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

Not available

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

Not available

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

Not available

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

Not available

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

Not available

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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

Not available

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

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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

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

Not available

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

Not available

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

ASkullcandy Method 540 ANC

Not available

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.

Not available

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

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

Not available

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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.

Not available

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.

Not available

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.

Not available

Not available

Mic noise reduction

AI1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Clear Voice Smart Mic. The help page says it uses artificial intelligence to isolate the speaker's voice.6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Clear Voice Smart Mic section: artificial intelligence isolates the speaker's voice and reduces background noise.

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.

Not available

Not available

SidetoneiHear your own voice in calls

Yes1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Natural Voice Sidetone for Calls.

Not available

Connectivity

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Chip

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Connections

Bluetooth1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list and specs: Bluetooth 5.3 only.

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

Bluetooth

5.31Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Technical Specifications: Connection Type Bluetooth 5.3. The page does not list codecs.

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

Bluetooth codecs

Not available

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

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.

Yes1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Multipoint Pairing.6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Multipoint Pairing section: pair with two devices at once, but they do not play simultaneously.10Reviewsoundguys.com/skullcandy-method-540-anc-gets-skull-ai-151116Read 15 October 2026News article: Bluetooth multipoint.

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.

26Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Multipoint Pairing section: two devices at once. The earbuds reconnect to the two most recently paired devices.

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

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Automatic switching between own devicesiThrough the maker's account

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Fast pairing

Google Fast Pair1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Google Fast Pair.10Reviewsoundguys.com/skullcandy-method-540-anc-gets-skull-ai-151116Read 15 October 2026News article: Bluetooth 5.3, Google Fast Pair and Bluetooth multipoint.

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

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

1 of 3 differ

Low latency mode

Yes1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Skullcandy help page lists Low-Latency Mode in the app. The product page does not.6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026App list: turn on Low-Latency Mode to improve performance for gaming or streaming video. TechRadar also lists it.9Reviewtechradar.com/audio/earbuds-airpods/skullcandy-method-540-reviewRead 15 October 2026Review: the app can turn on low-latency mode.

Not available

Claimed latency

Not available

Not available

Lowest claimed latency

Not available

Not available

Compatibility

2 of 4 differ

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

Not available

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.

Not available

Not available

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

ASkullcandy Method 540 ANC

Feature	Needs
Skull AI	Needs the Skull-iQ app. It is free for a limited time and then a monthly or yearly subscription.
Spotify Tap	Needs the Spotify app on the phone and an active Spotify account.
Multipoint	Two devices stay connected but they do not play audio at the same time. Turn multipoint off in the app before a firmware update.
Skullcandy app	Supported on mobile devices only. There is no app support on PC, iPad or MacBook.

Source6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Multipoint, Spotify Tap, firmware update and new features sections.

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.

Not available

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.

ASkullcandy Method 540 ANC

Mode	Includes case recharges	Hours (h)
ANC on	No	9
ANC on	Yes	32
ANC off	No	11
ANC off	Yes	40

Source1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list and FAQ: ANC on 9 hours in the earbuds and 23 hours in the case, 32 hours total. ANC off 11 hours in the earbuds and 29 hours in the case, 40 hours total. Volume and codec are not stated. The maker blog gives 42 hours with ANC off and the help page says up to 30 hours with ANC on. The product page figures are stored.

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.

11h=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.

9h=CalculatedFrom Claimed battery life

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.

11h=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

40h=CalculatedFrom Claimed battery life

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

32h=CalculatedFrom Claimed battery life

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.

10min1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Rapid Charge, 10 minutes gives 2 hours.

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.

2h1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026FAQ: the earbuds get 2 hours of battery after 10 minutes in their case. This is earbuds-only playback. ANC and volume are not stated.

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-C6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Charging section: the case charges from a power source with the USB-C charging cable and has a single LED next to the USB-C port.

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

Not available

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.

Touch6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Quick start default controls use taps and a 1 second hold on either bud. TechRadar says the controls are touch. The help page also calls the control a Main Function Button.9Reviewtechradar.com/audio/earbuds-airpods/skullcandy-method-540-reviewRead 15 October 2026Review: each bud has touch controls if you tap on its body.

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.

Touch6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Customize button functions lists volume up and volume down as options. They are not default gestures.

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

Gestures

Single tap: play or pause, answer a call, Double tap: next track, Triple tap: switch between ANC on, Stay-Aware mode and ANC off, Hold for 1 second: end a call, reject an incoming call, or launch Spotify, Hold for 3 seconds: start pairing mode for a second device6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Quick start default user controls. The page text is flattened, so the mapping of actions to gestures follows its order. A 3 second hold on either bud starts pairing mode in the multipoint steps.

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 pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: Customize Button Functions.6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Customize button functions: single, double, triple tap and 1 second hold on both buds can be set in the app. Not every function can be changed.

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

Voice assistant

Skull AI1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Page: Skull AI voice assistant, activated with OK, Skully.6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026FAQ: Skull AI Beta, OK Skully. Free for a limited time and then paid.

Not available

Sensors and health

3 of 9 differ

In-ear detection

Not available

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.

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

Not available

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.

S, M, L1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026What's in the box: Ear Gel sizes S, M, L.10Reviewsoundguys.com/skullcandy-method-540-anc-gets-skull-ai-151116Read 15 October 2026News article, 12 January 2026: three pairs of ear tips.

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

Not available

Not available

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

Fins1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026What's in the box: Fit Fin sizes S, M, L.9Reviewtechradar.com/audio/earbuds-airpods/skullcandy-method-540-reviewRead 15 October 2026Review: fins wedge the buds into the ear.

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

IPX41Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Feature list: IPX4 Sweat and Water Resistant. No rating is stated for the case.

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

1 of 6 differ

Companion app

Skull-iQ1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026FAQ: download the Skull-iQ app. The app store listing is named Skullcandy.

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

App platforms

Android, iOS6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026The Skullcandy app is supported on mobile devices only. The US page links the iOS and Google Play app stores.

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

User firmware updates

Yes6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Firmware over the air updates through the Skullcandy app.

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

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Not available

Dimensions and weight

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.

11g(0.4 oz)1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Technical Specifications: Weight Buds 11g each.

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.

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.

72g(2.5 oz)1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Technical Specifications: Case 72g.9Reviewtechradar.com/audio/earbuds-airpods/skullcandy-method-540-reviewRead 15 October 2026Review: charging case 72g.

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.

Width36Height102Depth29mm(1.4 × 4 × 1.1 in)1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Product gallery drawing with front and side views: 1.4 in (3.6 cm) wide, 1.1 in (2.9 cm) deep and 4 in (10.2 cm) high. Converted exactly to mm. The height excludes the clip ring. TechRadar gives 3.6 x 2.9 x 10.2 cm for the case.9Reviewtechradar.com/audio/earbuds-airpods/skullcandy-method-540-reviewRead 15 October 2026Review: the case measures 3.6 x 2.9 x 10.2 cm. The axes are not labelled in the text, so the product gallery drawing sets them.

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

1 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

Not available

Not available

FCC IDs

Not available

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

Not available

Not available

In the box

2 of 2 differ

In the box

Method 540 ANC True Wireless Earbuds, Charging Case, Ear Gel sizes: S, M, L, Fit Fin sizes: S, M, L, User Guide1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026What's in the box list. The list shows no cable. The help page mentions an included USB-C charging cable.

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

ASkullcandy Method 540 ANC

Type	Count
USB-C charging cable	1

Source6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Charging section: the included USB-C charging cable. The product page box list does not show a cable.

Bsoundcore Liberty 4 Pro

Not available

Links

Not compared

Product page

www.skullcandy.com/products/method-540-anc-noise-canceling-earbuds1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 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

Not available

Not available

Manual

www.skullcandy.com/blogs/product-help/method-540-anc6Owner's manualskullcandy.com/blogs/product-help/method-540-ancRead 15 October 2026Maker product help page for the Method 540 ANC with setup, controls, app and charging. It is the online guide. No PDF user guide was 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.

Not available

Not available

Warranty

1 of 1 differ

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

1year1Maker product pageskullcandy.com/products/method-540-anc-noise-canceling-earbudsRead 15 October 2026Store page: 1-Year Limited Warranty. US market.

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.