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Sennheiser ACCENTUM True Wireless vs soundcore P30i

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Product A: Sennheiser

ACCENTUM True Wireless

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Product B: soundcore

P30i

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Only differences

ASennheiser ACCENTUM True Wireless

Bsoundcore P30i

General

6 of 8 differ

Series

ACCENTUM5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026The release places ACCENTUM True Wireless in the ACCENTUM family next to ACCENTUM Wireless and ACCENTUM Plus Wireless.

Not available

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

ATW1, ATW1 R, ATW1 L, ATW1 C, 700262, 700263, 7002641Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: article numbers 700262 (Black), 700263 (White) and 700264 (Blue).2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Order names ATW1 Black, ATW1 White and ATW1 Blue with article numbers 700262, 700263 and 700264.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Cover: ATW1, ATW1 R, ATW1 L and ATW1 C.4Regulatory filingcdn.sennheiser-hearing.com/product-documents/product-downloads/accentum-true-wireless/safety_instruction/Compliance_Information_ACCENTUM_True_Wireless.pdfRead 16 October 2026Models ATW1, ATW1 R, ATW1 L and ATW1 C.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026US store SKUs 700262 (Black), 700263 (White) and 700264 (Blue).

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

4260752331241, 4260752331258, 4260752331265, 810091271148, 810091271155, 8100912711622Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Technical Data table: EAN 4260752331241, 4260752331258 and 4260752331265 and UPC 810091271148, 810091271155 and 810091271162 for Black, White and Blue.

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.

7 May 20245Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Maker news dated 6 May 2024 with the Wedemark dateline of 7 May 2024. The dateline date is stored.

Not available

Status

Available1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US store shows the product at 99.95 USD against 219.95 USD and lists Black, White and Blue.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026All three SKUs are available on 2026-10-16.

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

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SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

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

$199.995Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026MSRP of 199.99 USD and 279.95 CAD. SoundGuys and T3 print 199.95 USD. The maker figure is stored.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Review lists 199.95 USD.

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.

€199.96Press releasecdn.uc.assets.prezly.com/ff61fc44-afa0-42f0-934b-a6293529e6bd/-/inline/no/Pressemitteilung_Sennheiser%20ACCENTUM%20True%20Wireless.pdfRead 16 October 2026German release of 7 May 2024: 199.90 EUR (209.90 CHF), incl. VAT.

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, CA, DE, GB, AU5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026United States and Canada MSRP in the release.6Press releasecdn.uc.assets.prezly.com/ff61fc44-afa0-42f0-934b-a6293529e6bd/-/inline/no/Pressemitteilung_Sennheiser%20ACCENTUM%20True%20Wireless.pdfRead 16 October 2026Germany.10Reviewt3.com/reviews/sennheiser-accentum-true-wireless-reviewRead 16 October 2026Now on sale for 169.99 GBP in the UK and 299 AUD in Australia.

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

Black, White, Blue1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Colour selector: Black, White and Blue.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Launch colours black and white. Blue was added later and is on the maker store.7Maker product pageus.sennheiser-hearing.com/products/accentum-true-wireless.jsRead 16 October 2026Black, White and Blue.

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

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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 pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: ear coupling ear canal, true wireless stereo earphones with four ear tip sizes.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Wearing style true wireless earphones with ear coupling in the ear canal. The silicone ear tips must seal the ear fully.

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.

Stemless3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Earbud diagrams show a compact body with no stalk.

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 bud3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026You can also use only the right or only the left earbud.

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

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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.

ASennheiser ACCENTUM True Wireless

Type	Diameter (mm)	Count per earbud
Dynamic	7	1

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: TrueResponse dynamic, 7 mm diameter. One driver 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.

Dynamic1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: speaker principle dynamic.

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.

7mm=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.

1=CalculatedFrom Drivers per bud

1=CalculatedFrom Drivers per bud

Diaphragm material

Not available

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

Min5 HzMax21 kHz1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: speaker frequency range 5 Hz to 21 kHz. Conditions are not stated.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Speaker frequency range 5 Hz to 21 kHz.

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.

107dB1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 107 dB SPL (1 kHz / 1 mW). The manual prints 107 dB at 1 kHz / 0 dBFS.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Speaker sensitivity 107 dB SPL (1 kHz / 1 mW).

Not available

Sensitivity reference

Per 1 mW1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table gives the reference as 1 mW.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Reference 1 mW.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications print the level as 107 dB at 1 kHz / 0 dBFS. The spec sheet says 1 mW, which is stored. The two references are not the same.

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

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: the Smart Control Plus app has a Sound Personalization feature that assesses your listening preferences. The Sound Check presets come from a listening test.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Sound Check in the app guides you step by step to user-defined equalizer presets.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Sound Check feature takes a listening test that determines your preferred sound.

Not available

Onboard EQ

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The sound effects are stored in the earbuds and stay active without the app, for example on another Bluetooth device.

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 pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: 5-band EQ in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 20265-band equalizer and Sound Check in the Smart Control app.

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

Not available

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Spatial audio

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

Not available

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.

Not available

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Noise cancelling

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Active noise cancelling

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Hybrid Active Noise Cancellation.

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.

Hybrid1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Active Noise Cancellation Hybrid ANC.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: Hybrid ANC technology.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Hybrid ANC with Transparency modes.

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.

43Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: 2 microphones per earbud for speech and ANC, so four across the pair. Shared microphones count once.

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.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026With adaptive noise cancellation the intensity is controlled automatically by the ambient noise. ANC modes in the app: On, Off and Anti Wind.

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.

Not available

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Transparency Mode.

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

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The intensity of transparency mode is set in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026In the app the user can select the amount of transparency.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026A three-stage transparency mode.

Not available

Automatic ANC and transparency blendiAutomatically blends active cancellation with ambient sound. Automatic activity-based switching between separate modes alone does not qualify.

Not available

Not available

Conversation detection

Not available

Not available

Wind noise reductioniA documented physical design or processing feature for reducing wind noise. The source note distinguishes mesh or shape changes from selectable processing.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026ANC mode Anti Wind: light reduction to keep disturbing wind or movement noise to a minimum. It is a selectable mode.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026A special anti-wind ANC mode for outdoor use.

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

Default sound over-emphasizes bass by a couple of dB against the SoundGuys target and under-emphasizes the mids around 500 Hz and 3 kHz by up to 5 dB. There is a boost of a couple of dB around 13 kHz. With ANC on the bass is more emphasized.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Lab measurement on SoundGuys' test rig against its headphone preference curve, default settings, firmware 5.7.6, Smart Control app 4.8.1. ANC adds bass emphasis. SoundGuys did not measure battery for this model.

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

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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

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

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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

Clear in a quiet room. The microphones struggle to attenuate simulated office, street and wind noise.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026SoundGuys microphone tests with simulated office, street and wind noise.

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

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

Not available

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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.

ASennheiser ACCENTUM True Wireless

ANC	Codec	Hours (h)
No	AAC	8.5
Yes	AAC	5.5

Source9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Practical test with the AAC codec at a high playback volume: 8.5 hours with ANC off and 5.5 hours with ANC on. Tom's Guide measured about 6.5 hours ANC off and 5 hours ANC on at up to 70 percent volume with multipoint, and GSMArena and HiFi Oasis got about 5.5 hours ANC on with aptX. The reviewers use different volumes, so only this one test is stored. The review's total with the case is a calculation, so it is not stored.

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.

8.5h=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

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

55min9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026About 55 minutes to refuel the earbuds when empty. The case took 75 minutes by cable.

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

3 of 7 differ

Voice microphones in both earbudsiPhysical call and beamforming microphones across the pair. Excludes case microphones and vibration sensors. Shared ANC microphones can also count here when used for calls.

41Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 2 mics per earbud, beamforming for noise reduction. Page: dual mics on each earbud.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: 2 microphones per earbud for speech and ANC, so four across the pair.

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.

43Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The same two microphones per earbud serve speech and ANC, so four physical microphones in total. No feedback microphone is named.

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

DSP3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Beamforming array for the speech and ANC microphones.

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.

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026During a call tap once on either earbud to mute or unmute the microphones.

Not available

SidetoneiHear your own voice in calls

Yes9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026In calls, external noise can be amplified in two intensity levels so you hear your own voice more naturally.

Not available

Connectivity

8 of 18 differ

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

Bluetooth1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Bluetooth only. The earbuds have no wired or dongle connection.

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

Bluetooth

5.31Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Bluetooth 5.3 compliant, class 1, 10 mW max.

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, aptX, LC31Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: SBC, AAC, aptX, LC3.

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

Bluetooth profiles

A2DP, AVRCP, HFP, TMAP, PBP1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: A2DP, AVRCP, HFP, TMAP, PBP.

Not available

LE Audio

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Bluetooth 5.3, Bluetooth LE and Auracast.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Connectivity: Bluetooth Classic and LE Audio supported.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The earbuds are certified for Bluetooth 5.3 LE Audio and Auracast broadcast audio. The codec row lists LC3.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Bluetooth LE Audio capable.

Not available

Auracast

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Footnote: Auracast is available via firmware update only.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Auracast broadcast audio with a function in the Smart Control app.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026The earbuds are Bluetooth LE Audio and Auracast capable, with use at Auracast venues in the near future.

Not available

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

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: number of active connections 2.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Bluetooth multipoint lets you pair to multiple devices simultaneously.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Multipoint connections with two devices simultaneously.11Reviewtomsguide.com/audio/earbuds/sennheiser-accentum-true-wirelessRead 16 October 2026The review says the earbuds pair to two devices simultaneously with multipoint.

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.

23Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: number of active connections 2. Audio plays from one device at a time.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026Multipoint connections with two devices simultaneously.

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

Not available

Not available

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

63Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The earbuds store the connection profiles of up to six paired Bluetooth devices.

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Not available

Not available

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

Not available

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

1 of 3 differ

Low latency mode

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Low Latency mode in the app reduces the delay between audio and video further. It works with all Bluetooth codecs and can shorten the range.9Reviewheadphonecheck.com/test/sennheiser-accentum-true-wirelessRead 16 October 2026The app can activate low-latency mode for games.

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.

Not available

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.

ASennheiser ACCENTUM True Wireless

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.

ASennheiser ACCENTUM True Wireless

Feature	Needs
Auracast	Firmware update. Broadcasts are chosen in the Sennheiser Smart Control app.
Eco mode	Only with sources that support aptX. The mode turns aptX off and sends SBC or AAC.
Claimed battery life	Manual test: smartphone at 1 m, Bluetooth AAC codec, volume 50 percent, ANC off. The US spec table says iPhone at a mid volume of 85 dB.

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Footnote on Auracast and the spec table test condition.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Eco mode section and Operating time row of the specifications.

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

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.

55mAh1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: left and right earbud 55 mAh.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery type: left and right earbud 55 mAh.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: earbuds 3.7 V, 55 mAh, 0.2 Wh.

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.

ASennheiser ACCENTUM True Wireless

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	8
ANC on	Not available	No	6
ANC off	AAC	Yes	28

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: up to 8 hours with ANC off, 6 hours with ANC on and 28 hours overall with the case. Test condition: iPhone, mid volume level 85 dB. The 28 hours match 8 hours plus 20 hours from the case, so they are stored as an ANC-off total.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery lifespan: up to 8 hours ANC off, up to 6 hours ANC on, up to 28 hours overall with the case. Test condition: iPhone, mid volume level 85 dB.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications, Operating time: 8 hours with the earbud battery and 28 hours with the case battery. Test conditions: smartphone at 1 m, Bluetooth AAC codec, volume 50 percent, ANC off.

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.

8h=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.

6h=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.

8h=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.

28h=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.

Not available

30h=CalculatedFrom Claimed battery life

Talk time (claimed)

Not available

4.5h=CalculatedFrom Claimed battery life

Full charge time, budsiTime to charge discharged earbuds to full in the case. Excludes charging the case itself or a combined buds-and-case result.

Not available

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.

A full charge of the case and the earbuds together takes about 1.5 hours. Ambient temperatures below 15 C or above 30 C and Qi wireless charging lengthen the time. Charging works between 5 C and 35 C. The case takes 5 V over USB-C. The spec sheet and manual say 500 mA at most and the US page says 1000 mA at most. A battery protection mode charges the earbuds to about 80 percent.1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: charging time about 1.5 hours for a full charge, with the temperature remark. Power supply 5 V, 1000 mA max, USB-C and Qi.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Power supply: 5 V, 500 mA max over USB-C. The US page prints 1000 mA max. Charging temperature 5 to 35 C.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026A full charge cycle of the case and the earbuds takes about 1.5 hours. The battery protection mode charges to about 80 percent. The case input is 5 V, 500 mA max.

Not available

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

10min1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: after 10 minutes of charging, 1 hour of music playtime.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Quick charging over USB gives up to 1 hour of playback in about 10 minutes.

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.

1h1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: after 10 minutes of charging, 1 hour of music playtime. Volume and ANC state are not stated.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Up to 1 hour of playback in about 10 minutes.

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.

400mAh1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: charging case 400-420 mAh. The lower figure is stored. The manual lists 1.48 to 1.56 Wh at 3.7 V.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Battery type: charging case 400-420 mAh.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: charging case 3.7 V, 400-420 mAh, 1.48-1.56 Wh. The lower figure is stored.

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-C1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: USB charging via USB-C socket at the charging case.

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.

Not available

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: convenient Qi wireless or USB-C charging.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026The case charges by USB cable or on a Qi-compatible wireless charger.5Press releasenewsroom.sennheiser.com/pocketable-powerhouse-this-is-accentum-true-wirelessRead 16 October 2026Both USB-C and Qi wireless charging are available in the case.

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.

Qi1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: Qi wireless charging.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Qi-compatible wireless charging station.

Not available

Wireless charging poweriHighest wireless charging input the maker states for the case. The output of a charging pad does not count.

Not available

Not available

Speaker in caseiAn audio speaker physically in the charging case, for locating or status sounds. A microphone in the case is separate.

Not available

Not available

Screen on case

Not available

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

2 of 5 differ

ControlsiPressure is a force sensor that does not move, such as a stem you squeeze. Button is a key that moves when pressed.

Touch1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: touch interface.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Touch control surface on each earbud.

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.

Touch3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Touch and hold the left surface to lower the volume and the right surface to raise it.

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

Right tap once: play or pause, answer a call, Left tap once: transparency mode on or off, Left tap twice: previous track, Right tap twice: next track, Left tap three times: ANC on or off, Right tap three times: voice assistant, Touch and hold left: volume down, Touch and hold right: volume up, Tap twice in a call: end a call or reject an incoming call, Tap once in a call: mute or unmute the microphones3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Operation chapter: tap and hold gestures for volume, transparency, ANC, voice assistant, playback and calls. Controls can be changed in the app.

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Page: the customizable touch interface controls playback, calls and voice assistant.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026In the app you can customise control functions, select presets or switch them off. Some basic functions such as phone control cannot be changed.

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

Voice assistant

Siri, Google Assistant3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Triple tap on the right earbud starts the voice assistant of your device, for example Siri or Google Assistant.

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

2 of 9 differ

In-ear detection

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Smart Pause: music pauses when you take an earbud out and resumes when you put it back. It can be turned off in the app.

Not available

Sensors

Not available

Not available

Heart rate sensor

Not available

Not available

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

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

Yes1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Sound Check and Sound Personalization are listening preference tests. No medical hearing test is claimed.8Reviewsoundguys.com/sennheiser-accentum-true-wireless-review-116713Read 16 October 2026Sound Check listening test. It is not a medical hearing test.

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

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

XS, S, M, L1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box: ear tip sets XS, S, M and L.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Four silicone ear tip sizes XS, S, M and L. Size M is fitted on delivery.

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

Silicone1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026The page names ear tips. The manual says silicone.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Silicone ear tips.

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.

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Ear tip fit test

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Fit Test function in the Smart Control app.

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

IP541Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: IP54, splash resistant, earbuds only.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Weather resistance: IP54, earbuds only.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Earbuds splash resistant to IP54. The charging case is not splash proof.

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

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Water resistance depth

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Software

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Companion app

Sennheiser Smart Control1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Sennheiser Smart Control app. The page also names a Smart Control Plus app.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Sennheiser Smart Control app.

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, iOS1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: Smart Control app for iOS and Android.

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

Yes3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Free firmware updates through the Smart Control app.

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

Finding network

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Precision findingiUWB in the case

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Live translation

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Dimensions and weight

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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)1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 5.5 g single earbud.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Product weight: 5.5 g single earbud.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: earbud approx. 5.5 g each.

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.

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

41g(1.4 oz)1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026Spec table: 41 g charging case. The 52 g total equals the case plus two earbuds, so this is the empty case.2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Product weight: 41 g charging case.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Specifications: charging case approx. 41 g. Both earbuds and case approx. 52 g.

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

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Certifications

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

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Communication certifications

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FCC IDs

2A3ULATW14Regulatory filingcdn.sennheiser-hearing.com/product-documents/product-downloads/accentum-true-wireless/safety_instruction/Compliance_Information_ACCENTUM_True_Wireless.pdfRead 16 October 2026Compliance Information: FCC ID 2A3ULATW1 on the earbud models ATW1 R and ATW1 L. The charging case ATW1 C shows no FCC ID.

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

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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

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In the box

Earbud R (ATW1 R) and earbud L (ATW1 L), Charging case (ATW1 C) with built-in battery and wireless charging, USB cable with USB-C and USB-A connector, approx. 0.4 m, Silicone ear tips in sizes XS, S, M (fitted on delivery) and L, Quick guide, Safety guide1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box and the manual's delivery list.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Scope of delivery chapter.

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

ASennheiser ACCENTUM True Wireless

Type	Length (m)	Count
USB-C to USB-A	0.4	1

Source1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026What's in the box: one USB-C charging cable.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026USB cable with USB-C and USB-A connector, approx. 0.4 m.

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.sennheiser-hearing.com/products/accentum-true-wireless1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US maker product page.

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

Spec sheet

stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdf2Maker spec sheet (PDF)stassen.nl/images/Senn_ACCENTUM%20TW_Spec_Sheet_EN.pdfRead 16 October 2026Sennheiser English spec sheet, as hosted by a distributor.

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Manual

www.bax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdf3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026Dutch manual, version 04/24 A01, hosted by a retailer. It is the maker's manual for ATW1. The English copy was not reachable on the maker's CDN.

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

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

1year1Maker product pageus.sennheiser-hearing.com/products/accentum-true-wirelessRead 16 October 2026US store: 1-year manufacturer warranty. The EU manual says 24 months.3Owner's manualbax-shop.nl/downloads/products/9000-0131-1764/atw1_manual_nl.pdfRead 16 October 2026EU manual: the maker grants a 24-month warranty. The US store says 1 year and is stored.

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.