Headsets and headphones / Compare

Nothing Headphone (a) vs Sony ULT WEAR

A

Product A: Nothing

Headphone (a)

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B

Product B: Sony

ULT WEAR

83 of 161 known

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All 161 fields

Every value links to where we found it.

Only differences

ANothing Headphone (a)

BSony ULT WEAR

General

6 of 8 differ

Series

Not available

ULT POWER SOUND10Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 5 October 2026

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

B1862Spec databaseifixit.com/Device/Nothing_Headphone_(a)Read 15 October 2026Specifications: Model number B186. The Amazon listing also prints Model Number B186. Retailer codes such as A11300038 at LDLC are not stored.

WH-ULT900N2Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-ult900n/specificationsRead 5 October 2026Official support specification identity WH-ULT900N / ULT WEAR. Exact marketed model, not WH-XB910N.

GTIN / EAN

6974434227446, 6974434227453, 6974434227439, 69744342275696Maker product pagede.nothing.tech/products/headphone-aRead 15 October 2026Store variant data on the Nothing EU store: SKU and barcode 6974434227446 White, 6974434227453 Black, 6974434227439 Pink, 6974434227569 Yellow.

Not available

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

5 March 20264Reviewtechradar.com/audio/wireless-headphones/the-nothing-headphone-a-are-here-and-they-rock-here-are-5-things-you-need-to-know-about-themRead 15 October 2026Article published 5 March 2026 on the launch. Pre-orders opened on 5 March 2026 and sales started on 13 March 2026 for white, black and pink. The yellow edition followed from 6 April 2026 (Hardware Busters). iFixit says the newsroom announcement was on 26 February, which is a teaser date.5Press articlehwbusters.com/news/nothing-launches-affordable-headphoneRead 15 October 2026Available starting March 13 for black, white and pink and April 6 for the limited-edition yellow. Pre-orders open at launch. The article gives EUR 189 for Greece, a country price that is not stored.

11 April 202410Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 5 October 2026Maker launch date April 11, 2024. Planned Spring availability alone is not used as actual retail month.

Status

Available1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026The page sells the headphones at $199 with Add to bag.

Available3Maker product pagesony.jp/headphone/products/ULT_WEARRead 5 October 2026Current Japanese maker store page offers purchase and next-day shipment.

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

Not available

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

$1991Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026$199 on the Nothing US store with an Add to bag button.3Reviewtechradar.com/audio/wireless-headphones/nothing-headphone-a-reviewRead 15 October 2026Official price $199 / GBP 149 / AU$329.

$199.9910Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 5 October 2026Exact Sony US launch release gives suggested retail price 199.99 USD for ULT WEAR. US price before local sales tax. Canada 349.99 and speaker prices are not substituted. Other markets without verified tax scope omitted.

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.

€1596Maker product pagede.nothing.tech/products/headphone-aRead 15 October 2026German Nothing store lists EUR 159. Trusted Reviews and GSMArena give the same EUR 159 MSRP at launch. Tax treatment is not stated.13Reviewtrustedreviews.com/reviews/nothing-headphone-aRead 15 October 2026MSRP of GBP 149 in the UK ($199 / EUR 159).14Press articlegsmarena.com/nothing_headphone_a_unboxing-news-72043.phpRead 15 October 2026At GBP 149 / $199 / EUR 159 you're getting a lot for not a lot.

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

US10Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 5 October 2026

ColoursiThe maker's own colour names

White, Black, Pink, Yellow1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Colour picker: White, Black, Pink, Yellow.

Black, Off White, Forest Gray3Maker product pagesony.jp/headphone/products/ULT_WEARRead 5 October 2026Exact current three finish swatches, also confirmed US launch release.

Segment

Music1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Listed under Audio. Marketed for music listening with ANC, a tuned EQ and Hi-Res Audio. Stored as music.

Music10Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 5 October 2026

Design

1 of 7 differ

Form factor

Over-ear2Spec databaseifixit.com/Device/Nothing_Headphone_(a)Read 15 October 2026Specifications: Type Over-ear.

Over-ear10Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 5 October 2026Maker explicitly balanced over-ear comfort and foldable headphone design.

Ear cup enclosureiClosed, open or semi-open acoustic enclosure. This does not describe how the headset folds.

Closed2Spec databaseifixit.com/Device/Nothing_Headphone_(a)Read 15 October 2026Specifications: Enclosure Closed.

Closed1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Wearing style

Headband8Reviewsoundguys.com/nothing-headphone-a-review-154232Read 15 October 2026Headband with a plastic friction band.

Headband10Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 5 October 2026

FoldingiFlat means the ear cups rotate flat. Inward means the ear cups fold toward the headband.

None9Measurementsoundguys.com/product/nothing-headphone-aRead 15 October 2026Spec list: Foldable No. Which? also lists Headphones fold: No.10Reviewwhich.co.uk/reviews/headphones/nothing-headphone-aRead 15 October 2026Public spec list: Headphones fold No. The rest of the review is paywalled and was not used.

Flat and inward6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Page 10 expressly rotate both units flat and fold one toward headband. Maker feature 4 confirms folding and swivel structure.

Swivelling ear cupsiEar cups can rotate relative to the headband. Tilting alone does not count.

Yes16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026The rectangular earcups can both tilt and swivel.

Yes6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

RGB lighting

Not available

Not available

Lighting zonesiNumber of independently controllable lighting areas across both ear cups.

Not available

Not available

Drivers and sound

12 of 20 differ

Driver type

Dynamic1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: a 40 mm titanium-coated diaphragm with a next-gen magnet and voice-coil system. HeadphoneCheck calls them 40 mm dynamic drivers.16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026Custom-developed 40 mm dynamic drivers. Technical specifications: transducer principle dynamic.

Dynamic1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Driver sizeiDiameter of the largest sound driver. Do not use the microphone capsule diameter.

40mm1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Sound: Drivers 40 mm.

40mm1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Drivers per sideiNumber of sound-producing transducers in one side, excluding microphones.

Not available

Not available

Diaphragm material

PEN+PU dome, titanium-coated1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Diaphragm: Dome material PEN+PU, Coating titanium-coated.

Not available

Magnet

Not available

Neodymium1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Frequency response (wired or passive)iPublished acoustic range for wired listening, or the maker’s single range when no mode is distinguished. Power state and test standard belong in the source note.

Min20 HzMax40 kHz1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Sound: RF 20 Hz - 40,000 Hz. The row label is RF and no power state or test standard is given. Expert Reviews and iFixit repeat 20 Hz to 40 kHz.

Min5 HzMax20 kHz1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026Maker specification JEITA 5 Hz-20 kHz. Manual page 142 identifies the same numerical range as powered wired IEC response. No wireless or passive 40 kHz response is claimed.

Wireless audio transmission bandiFrequency range of audio transmitted over the wireless connection, not the acoustic response of the driver. Codec, sampling rate and bitrate conditions belong in the source note. When the maker gives a range per codec, the widest range is stored and its codec goes in the source note.

Not available

Min20 HzMax20 kHz1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026A2DP transmission range 20 Hz-20 kHz at 44.1 kHz sampling. This is not a measured acoustic bandwidth.

Impedance (passive when specified)iUse the headset-off value for a passive analog connection when the maker publishes both powered and passive values. Note the power state and test frequency.

16Ω17Retailer pageamazon.com/dp/B0G6L57FHVRead 15 October 2026Listing attribute: Impedance 16 ohm. The maker table has no impedance row. The listing also prints Model Number B186 and a 1 year manufacturer warranty. The power state is not stated. The listing title says 5 HD mics, which the maker does not support.

32Ω1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026Passive wired power-off impedance 32 ohms at 1 kHz. Powered wired impedance is 314 ohms and is not mixed with the passive value.

Sensitivity (passive when specified)iUse the headset-off figure when both powered and passive values exist. The power or voltage reference, test distance and frequency belong in the source note.

Not available

100dB1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026Passive wired power-off 100 dB/mW at 1 kHz. Powered wired sensitivity is 110 dB/mW.

Sensitivity referenceiPublished power or voltage reference for sensitivity. Do not assume 1 mW when the source gives only a dB value.

Not available

Per 1 mW1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

THD (claimed)iPublished distortion figure or numerical upper bound. The source note states any less-than sign and test level.

Not available

Not available

Max input power

Not available

Not available

Max digital audio sample rateiHighest supported digital audio sample rate over a USB cable or wireless dongle. This is not the microphone rate or acoustic frequency response.

96kHz16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026Over USB-C under macOS the headphones are recognised automatically and support up to 24-bit/96 kHz. This is the reviewer's observation and the maker prints 24-bit/96 kHz only for LDAC.

Not available

Max digital audio bit depthiHighest published digital playback bit depth over a USB cable or wireless dongle.

24bits16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026Over USB-C under macOS the headphones support up to 24-bit/96 kHz.

Not available

DAC

Not available

Not available

Personalised soundiA manufacturer-supported hearing test or ear scan creates a device sound profile tailored to the listener. Generic equalizer adjustments do not count.

No16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026A personalised sound profile feature is missing compared to the Headphone (1).

Not available

Onboard EQiCustom playback EQ profiles stored in the headset and applied without the host app running. Note supported active connections. Receiver-only or software-only EQ does not count.

Not available

Not available

Custom EQ bandsiNumber of bands in the custom playback equalizer. Microphone EQ bands are excluded.

81Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Nothing X: advanced 8-band equaliser.

Not available

EQ presets

Balanced, More Bass, More Treble, Voice13Reviewtrustedreviews.com/reviews/nothing-headphone-aRead 15 October 2026Four default EQ settings. The names come from the Nothing support article on equalisers for the Headphone (a): Balanced, More Bass, More Treble and Voice, plus Custom and Advanced modes.15Maker product pagesupport.nothing.tech/hc/en-us/articles/44186010442001-How-many-equalisers-does-Nothing-Headphone-a-offerRead 15 October 2026Four preset EQ modes, Balanced, More Bass, More Treble and Voice, with Custom and Advanced modes. The page is behind a bot check, so the wording was read through search result text.

Not available

Volume limit

Not available

Not available

Spatial audio

2 of 3 differ

Spatial audio supportiNamed headset or host spatial-audio systems that the maker or reviewer explicitly supports. A platform feature may require compatible hardware, software or a separate licence.

Static Spatial Audio: Cinema mode, Static Spatial Audio: Concert mode1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Nothing X: Static Spatial Audio modes inspired by live concerts and cinematic moments. SoundGuys and TechRadar name the two modes Cinema and Concert.3Reviewtechradar.com/audio/wireless-headphones/nothing-headphone-a-reviewRead 15 October 2026Spatial audio with Concert and Cinema modes, processed by Nothing, with no head tracking or Dolby Atmos.

360 Reality Audio5Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_3.htmlRead 5 October 2026Exact product features identify 360 Reality Audio certified model. Manual page 79 requires compatible paid streaming service on iOS/Android, not a permanently included service license.

Spatial audio licence includediA paid spatial-audio licence is bundled or embedded. Compatibility with a separately purchased app does not count.

Not available

Not available

Head tracking

No1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026TechRadar says there is no head tracking or Dolby Atmos. The maker page lists none.3Reviewtechradar.com/audio/wireless-headphones/nothing-headphone-a-reviewRead 15 October 2026You do not get head tracking or Dolby Atmos here.

Yes5Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_3.htmlRead 5 October 2026Exact head-tracking feature describes spatial sound with compatible Android devices and services. It is not universal tracking on all platforms.

Noise cancelling

4 of 10 differ

Active noise cancelling

Yes1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Noise Cancellation: Type ADAPTIVE ANC.

Yes4Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026

ANC typeiFeedforward uses outside microphones. Feedback uses inside microphones. Hybrid uses both. Voice-call noise filtering is separate.

Hybrid1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: 2mic Hybrid ANC (single side). Page text: dual feedforward and feedback microphones.16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026The hybrid noise cancelling is effective in the low-frequency range.

Hybrid4Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026Exact Dual Noise Sensor paragraph specifies two feedforward plus two feedback microphones across both housings. Four physical ANC microphones.

ANC microphonesiTotal microphones used for active playback noise cancellation across both sides. Do not substitute the total physical or voice microphone count.

41Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Total 4 mics and 2mic Hybrid ANC (single side). Read as two ANC microphones on each earcup, as on the Headphone (1) Pro table where 5 per side makes 10 in total. Expert Reviews reads it as ANC on one side only.

44Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026

Adaptive ANCiNoise cancellation automatically changes with the environment or fit. Manually choosing a level does not count.

Yes1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Type ADAPTIVE ANC.

Yes4Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026Behavior and location recognition automatically changes listening/noise-control settings. Manual page 108 expressly calls this auto noise adjustment Adaptive Sound Control. No automatic fit optimizer is inferred.

ANC levelsiNumber of adjustable cancellation strength steps. Off and transparency modes are excluded.

31Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: three levels of Active Noise Cancellation. Expert Reviews names Low, Mid and High plus an Adaptive setting.12Reviewexpertreviews.co.uk/technology/headphones-audio/nothing-headphone-a-reviewRead 15 October 2026Three levels, Low, Mid and High, plus an Adaptive setting.16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026The app has a three-level ANC mode (Low, Medium, High) and an adaptive option.

Not available

ANC attenuation (claimed)

40dB1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Depth up to 40 dB at 2000 Hz. Footnote 1: the 40 dB is a theoretical maximum from the Nothing laboratory and actual cancellation varies.

Not available

Transparency mode

Yes1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Features: Transparency mode.

Yes4Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026

Adjustable transparency

No16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026The transparency mode offers no adjustable settings.

Yes4Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026Voice Focus on/off and adjustable ambient sound controls. Numerical ANC attenuation and ANC level count are not stated.

Conversation detectioniAudio pauses or lowers automatically when the wearer speaks. Voice assistant activation does not count.

Not available

Not available

Wind noise reduction

Not available

Yes4Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026Redesigned microphone surround reduces wind noise in ANC, ambient and call listening. Maker footnote explicitly says this structure does not reduce noise for the remote call participant.

Measured

5 of 21 differ

Frequency response notesiMeasured by a reviewer, not claimed by the maker

Against the SoundGuys house curve the response sits about 4 to 5 dB above it in the sub-bass, dips to about 7.5 dB below it near 250 Hz and rises to about 7 dB above it near 3 kHz. The treble stays above the curve to 10 kHz and rolls off above 12.5 kHz.9Measurementsoundguys.com/product/nothing-headphone-aRead 15 October 2026Lab chart, SoundGuys Headphone Preference Curve: about +3.7 to +5.1 dB from 20 Hz to 100 Hz, +2.5 dB at 125 Hz, -7.5 dB at 250 Hz, -0.1 dB at 1 kHz, +6.8 dB at 3.15 kHz, +4.0 to +4.9 dB at 5 to 6.3 kHz, +1.5 dB at 10 kHz, -6.4 dB at 16 kHz and -20.9 dB at 20 kHz. The SoundGuys target is its own house curve and the test rig is not named. iFixit describes a bass-forward signature with a dip near 200 Hz.

The reviewed unit emphasizes bass. ULT modes further raise the low end, while the reviewer describes reduced upper-detail clarity.9Reviewsoundguys.com/sony-ult-wear-review-113412Read 5 October 2026Same exact review unit and firmware, reviewer frequency-response analysis. No graph coordinates or rating converted into dB values.

Bass amountiReviewer’s bass deviation from its stated target. Positive is more bass. Target and test method belong in the source note.

Not available

Not available

Treble amountiReviewer’s treble deviation from its stated target. Positive is more treble. Target and test method belong in the source note.

Not available

Not available

Deviation from targetiReviewer’s full-range error from its target curve. Do not substitute a regional bass or treble error.

Not available

Not available

Consistency between fittingsiReviewer’s standard deviation across repeated fittings. Test rig and fitting procedure belong in the source note.

Not available

Not available

Harmonic distortioniIndependently measured harmonic distortion, with test level and method in the source note.

Not available

Not available

Sound leakageiIndependently measured leakage at 30 cm. Playback level and method belong in the source note.

Not available

Not available

Measured noise isolationiIndependently measured attenuation. Positive values mean more noise reduction. ANC state, rig and frequency bands belong in the source note.

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Mic quality notesiMeasured by a reviewer, not claimed by the maker

On a phone call the voice was audible and intelligible but a little muffled, and traffic noise was fully silenced.11Reviewtomsguide.com/audio/headphones/nothing-headphone-a-reviewRead 15 October 2026Call quality section: the callee found the voice audible and intelligible but a little muffled, and traffic noise around the caller was completely silent. This is a phone-call listening test and not a lab measurement.

The recorded samples show wind sensitivity and pickup of nearby noise, despite the microphone windscreens.9Reviewsoundguys.com/sony-ult-wear-review-113412Read 5 October 2026Same exact unit, recorded ideal, office, street, wind and reverberant samples. Qualitative observations do not establish numeric bandwidth or noise-handling scores.

Mic low-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratioiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Measured latencyiEnd-to-end latency measured by a reviewer for a specific connection, platform and codec. Firmware, method and operating mode belong in the source note.

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Measured battery lifeiReviewer’s continuous playback test. State the connection, ANC and lighting where known. Unknown settings stay omitted and are described in the source note.

ANothing Headphone (a)

Not available

BSony ULT WEAR

Connection	Hours (h)
Bluetooth	32.58

Source9Reviewsoundguys.com/sony-ult-wear-review-113412Read 5 October 2026Provided review unit tested six days, firmware 1.0.8, Headphones Connect 10.4.1. Standardized playback peaking at 75 dB lasted 32 h 35 min, stored 32.58 h rounded. ANC state, codec and ULT mode not explicitly named for this run and not guessed.

Battery life (measured, max)iMeasured by a reviewer, not claimed by the maker

Not available

32.58h=CalculatedFrom Measured battery life

Clamping forceiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iIndependently weighed headset. A review that repeats the maker’s number does not qualify. Cable and microphone inclusion belong in the source note.

311g(11 oz)16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026Technical specifications: Weight without cable 311 g and with cable 328 g. Which? also lists 311 g. The maker states 310 g. The cable inclusion matches the maker basis because the headphones have a detachable cable.

Not available

Microphone

7 of 16 differ

MicrophoneiMain microphone used for speech. Secondary internal microphones may be described in the source note.

Built-in1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Built-in microphones for calls. No boom microphone appears in the box list or spec table.

Built-in1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Microphone element

Not available

Electret condenser1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026Exact microphone section explicitly electret condenser, not MEMS borrowed from the 1000X series.

Microphone pickup patterniUse the maker’s exact named pattern. Unidirectional does not establish whether the capsule is cardioid, supercardioid or hypercardioid.

Not available

Omnidirectional1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Voice microphonesiTotal microphones used for voice pickup or beamforming across both sides. ANC-only microphones are excluded.

31Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: 3 MIC ALGORITHM FOR CALLS. Page text: three microphones for Clear Voice Technology.

24Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026Voice pickup paragraph explicitly describes two microphones aligned toward the mouth. This is the voice system count, separate from four ANC microphones.

Total microphonesiEvery physical microphone across the headset, including call, ANC and calibration microphones. Shared microphones count once. Excludes microphones in charging cases or receivers, and vibration sensors. Use an explicitly published physical total, never a sum of overlapping role counts.

41Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Total 4 mics. The Amazon listing title says 5 HD mics, which the maker table does not support.

Not available

Mic frequency responseiAcoustic microphone response, not its digital sampling rate. Connection-specific ranges belong in the source note.

Not available

Not available

Mic sensitivityiPublished microphone sensitivity. Reference such as dBV/Pa or dBFS, frequency and distance belong in the source note.

Not available

Not available

Mic signal-to-noiseiPublished microphone signal-to-noise ratio. Minimum or typical conditions belong in the source note.

Not available

Not available

Mic sample rateiExplicitly published digital microphone capture or speech sampling rate. State the audio route in the source note, or say it is unpublished. Internal capture does not prove the effective rate on every connection. Acoustic bandwidth, playback rate and generic microphone-chip capability do not qualify.

Not available

Not available

Mic noise reductioniProcessing that removes noise from transmitted speech. Playback ANC and a directional microphone alone do not count.

AI1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026AI-powered Clear Voice Technology trained on over 28 million real-world scenarios for calls.

DSP4Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_2.htmlRead 5 October 2026Maker explicitly advanced voice signal processing with beamforming microphones and sensors. No AI inference from DSEE or generic processor branding.

Flip to mute

Not available

Not available

Mute button

Not available

Not available

Mute indicatoriPublished indication of microphone mute. mechanical_marker is a visible physical marker showing the microphone's mute-switch position. LED options require an electronic light. The in-line controller option is for a mute light on a cable remote.

Not available

Not available

Sidetone

Not available

Yes6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

Adjustable sidetone

Not available

Yes6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Page 108 explicitly sidetone on/off through app. This proves a switch, not a continuously adjustable mix level.

Foam microphone windscreeniA foam cover for the voice microphone. An internal metal mesh pop filter does not count.

Not available

Not available

Connectivity

7 of 20 differ

Audio connectionsiConnections that carry playback audio. Charging or firmware USB alone does not count as USB audio.

Bluetooth, Analog, USB1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: LDAC over Bluetooth, and a USB-C or 3.5 mm connection. The box has a USB-C cable for charging and USB audio and a 3.5 mm cable.

Analog, Bluetooth1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Analog source plugsiAnalog plug(s) supplied for the source device, including adapters. The headset-side jack is listed separately.

3.5 mm TRS2Spec databaseifixit.com/Device/Nothing_Headphone_(a)Read 15 October 2026Specifications, Interface: Line-in 3.5 mm stereo.

3.5 mm TRS1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026Maker stereo mini plug and manual three-contact plug illustration. USB-C is charging only.

Cable connector on headsetiConnection used by the playback cable at the headset. A fixed cable is not replaceable through a headset jack.

3.5 mm1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: connect with a USB-C or 3.5 mm jack. TechRadar and Expert Reviews describe a 3.5 mm jack on the right earcup.

3.5 mm1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Longest included cableiLength of the longest supplied cable, including charging and dongle cables. Individual cable lengths are listed in Cables included.

1.2m1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026In the box: 3.5 mm audio cable 1.2 m and USB-C cable 1.2 m.

1.2m1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 202614Maker product pagesony.jp/headphone/products/ULT_WEARRead 8 October 2026The complete maker accessory list establishes supplied lengths of approximately 1.2 m and 0.2 m, so the existing 1.2 m longest-supplied-cable value is supported.

Headset USB plug or portiUSB plug or port on the headset or its included wired audio adapter. A charging-only USB port can appear here.

USB-C1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026In the box: USB-C cable (1.2M) for charging and USB audio.

USB-C6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

Audio over USB-C cableiPlayback through a USB-C cable or included wired USB-C audio adapter. A charging-only USB-C port does not count.

Yes1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026In the box: USB-C cable (1.2M) (charging & USB Audio). TechRadar listened over USB-C in Hi-Res Audio.

No9Reviewsoundguys.com/sony-ult-wear-review-113412Read 5 October 2026Connectivity explicitly no audio over USB. USB-C charging only.

Passive wired listeningiAnalog playback works with the headset powered off or its battery empty. An active analog converter that needs headset power does not count.

Not available

Yes6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Page 72 explicitly music when powered off. ANC and ULT bass control require power. Wired calls use phone microphone, not headphone voice pickup.

Wireless receiveriDedicated wireless audio receiver or dongle. A wired USB sound card does not count.

None1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Bluetooth only. The box lists no receiver or dongle.

Not available

Wireless receiver connectoriPhysical USB connector on the receiver. Supplied extension cables and adapters are explained in the source note. Both means two native connector types.

Not available

Not available

Wireless range (claimed)iMaker’s advertised wireless range. Connection and indoor or outdoor conditions belong in the source note. Measured distance is not stored here.

10m1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Connectivity: Connection range 10 M.

10m1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026Approximately 10 m line of sight, confirmed manual page 142. Environmental range is not guaranteed.

Bluetooth

5.41Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Bluetooth version 5.4.

5.21Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Bluetooth codecsiNamed Bluetooth audio codecs supported by this exact model. Host, firmware and operating-mode restrictions belong in the source note.

AAC, SBC, LDAC1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Codecs AAC, SBC, LDAC.

SBC, AAC, LDAC1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

LE AudioiLE Audio playback support. Bluetooth Low Energy for app control alone does not count.

Not available

Not available

AuracastiAuracast broadcast audio support. Required phone, firmware and app conditions belong in the source note.

Not available

Not available

Bluetooth multipointiCan remain connected to multiple Bluetooth source devices at once. Mixing Bluetooth with a proprietary dongle is a separate field. A maker's dual connection to two Bluetooth devices at once counts.

Yes1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Dual connection YES. SoundGuys says it is not true multipoint but two devices stay connected and swap streams. Dual connection is off by default and is switched on in Nothing X.8Reviewsoundguys.com/nothing-headphone-a-review-154232Read 15 October 2026Dual connection: two devices on the connections list swap audio streams at the same time, no true multipoint.

Yes6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Pages 70-71 two simultaneously connected devices and one playing source. Original guide says LDAC is unavailable with multipoint enabled. Do not treat all codecs and simultaneous routes as unrestricted.

Multipoint devicesiNumber of Bluetooth source devices connected at once, not the number remembered for later pairing.

21Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Dual connection: two devices.

26Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

Paired devices remembered

Not available

86Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Page 67 explicitly up to eight stored devices, with ninth overwriting oldest connection.

Mixes 2.4 GHz and Bluetooth audioiPlays both wireless audio streams at the same time. Automatic switching or Bluetooth standby does not count.

Not available

Not available

Fast pairing

Google Fast Pair, Microsoft Swift Pair1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Tech Integrations: Google Fast Pair and Microsoft Swift Pair.

Google Fast Pair, Microsoft Swift Pair7Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_5.htmlRead 5 October 2026Exact Google Fast Pair Android feature and Windows 10/11 Swift Pair feature. Pairing support does not establish every application compatibility.

Base station

Not available

Not available

Latency

2 of 2 differ

Low latency modeiA selectable mode intended to reduce audio delay. A low-latency connection without a distinct mode does not count.

Yes1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Low lag mode. TechRadar finds a low-lag mode for gaming in the app.3Reviewtechradar.com/audio/wireless-headphones/nothing-headphone-a-reviewRead 15 October 2026The app has a low-lag mode for gaming.

Not available

Claimed latencyiMaker’s claimed delay for the stated connection and mode. Minimum claims and host restrictions belong in the source note.

ANothing Headphone (a)

Connection	Mode	Latency (ms)
Bluetooth	Game Mode on Nothing phones	120

Source1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Footnote 3: latency can be as low as 120 ms when paired with Nothing phones with Game Mode on. This is a minimum claim for Nothing phones only.

BSony ULT WEAR

Not available

Compatibility

2 of 3 differ

Compatible platformsiPlatforms with a documented audio path. This does not imply every connection or microphone function works. Platform editions must be checked individually.

Android, iOS, Windows1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: dual-device connections on Android, Windows and iOS. Spec table: Android 5.1 and above, iOS 13 and above.

Windows, macOS, Android, iOS6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Exact guide has separate Android, iPhone, Windows 10/11 and macOS pairing chapters. Universal analog jack availability is not used to infer console licensing or supported console microphones.

Connection per platformiOnly explicitly documented playback paths for the exact model. Microphone support is separate. Leave unknown microphone support omitted. An Xbox and a PlayStation edition of one headset can connect differently, so it is per variant.

ANothing Headphone (a)

Not available

BSony ULT WEAR

Platform	Connection
Windows	Bluetooth
macOS	Bluetooth
Android	Bluetooth
iOS	Bluetooth

Source6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

Official licence

Not available

Not available

Battery and charging

10 of 13 differ

Battery capacityiRated capacity of one headset battery. Do not use case, receiver or total multi-battery capacity.

1,060mAh1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Battery: 1060 mAh rechargeable lithium-ion.

Not available

Swappable batteryiBattery can be exchanged by the user as part of normal operation. Service or recycling disassembly does not count.

No2Spec databaseifixit.com/Device/Nothing_Headphone_(a)Read 15 October 2026Specifications, Battery: User-replaceable No.

Not available

Batteries includediNumber of headset batteries supplied, including the one already installed.

Not available

Not available

Claimed battery lifeiMaker’s maximum playback time per stated connection, codec, ANC, spatial audio and lighting settings. Name the spatial processing mode and other conditions in the source note. Unknown settings stay omitted.

ANothing Headphone (a)

Connection	ANC	Codec	Hours (h)
Bluetooth	No	AAC	135
Bluetooth	Yes	AAC	75
Bluetooth	No	LDAC	90
Bluetooth	Yes	LDAC	62

Source1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Playback: AAC ANC off up to 135 h, ANC on up to 75 h, LDAC ANC off up to 90 h, ANC on up to 62 h. Footnote 2: the 135 h figure is at 50% volume, AAC, default settings and 25 C from the Nothing laboratory. Expert Reviews prints 60 h for LDAC with ANC and iFixit prints 62 h, so the maker table is followed. The table also gives talk time of 72 h ANC off and 50 h ANC on, which has no field.

BSony ULT WEAR

Connection	ANC	Codec	Hours (h)
Bluetooth	Yes	AAC	30
Bluetooth	No	AAC	50
Bluetooth	Yes	SBC	30
Bluetooth	No	SBC	50
Bluetooth	Yes	LDAC	25
Bluetooth	No	LDAC	40
Analog	Yes	Not available	30
Analog	No	Not available	50

Source12Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 8 October 2026Printed page 25 of the current exact ULT WEAR Help Guide gives music playback after a full charge. AAC and SBC each allow up to 30 hours with ANC on or 50 hours with ANC and Ambient Sound Mode off. LDAC allows 25 hours with ANC on or 40 hours with both modes off. Powered analog playback allows 30 hours with ANC on or 50 hours with both modes off. Each named codec is retained in its own row. Page 26 warns that Equalizer, DSEE, voice-assistant wake words, Service Link, and the ULT Bass Control function shorten these maxima. Playback volume and LDAC bitrate are unspecified. Communication durations are excluded. The maker guide explicitly covers the ULT WEAR reference, including original model YY2981.14Maker product pagesony.jp/headphone/products/ULT_WEARRead 8 October 2026The Japanese product headline explicitly qualifies its AAC 30-hour ANC-on and 50-hour ANC-off claims with DSEE and equalizer off and other functions at their defaults. These named settings apply to that AAC claim. LDAC and SBC rows retain the separate current manual conditions, without inheriting this AAC-specific footnote.

Battery life (claimed, max)

135h=CalculatedFrom Claimed battery life

50h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

75h=CalculatedFrom Claimed battery life

30h=CalculatedFrom Claimed battery life

Battery life without ANC (claimed)

135h=CalculatedFrom Claimed battery life

50h=CalculatedFrom Claimed battery life

Charging port

USB-C1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Type-C wired charging.

USB-C6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

Full charge timeiPublished time to fully charge a depleted headset. In-use charging can take longer.

120min1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Charging: Type-C wired charging to full 2 hours.

210min6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Page 23 explicitly empty battery to full capacity in about 3.5 hours, 210 minutes, using supplied cable and adapter supplying at least 0.5 A.

Quick charge timeiCharge duration in the maker’s quick-charge claim. Read together with Quick charge playback.

5min1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Fast charging: 5 min charge.

10min6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

Quick charge playbackiPlayback gained from Quick charge time. Charger power, codec, volume and ANC conditions belong in the source note.

8h1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: 5 min charge gives 8 hours with ANC off and 5 hours with ANC on. Footnote 2: ANC off, 50% volume, AAC, default settings, 25 C. The ANC-off figure is stored.

5h6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Page 25 explicitly 10-minute charge for about 5 hours music. Same page separately gives 3 minutes for 90 minutes. No codec or ANC state stated for quick charge.

Use while charging

Yes13Reviewtrustedreviews.com/reviews/nothing-headphone-aRead 15 October 2026A full charge from flat takes 2 hours, but you can charge them while you're listening.

No6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Pages 23-24 headset automatically turns off and all operations including playback are disabled while connected to charging power.

Charging dock or stand

Not available

Not available

Controls

4 of 6 differ

Controls

Volume wheel, Buttons, Slider1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table, Controls: Roller for volume and play, Paddle for tracks, Button, and an On/Off switch. The Paddle and Button are stored as buttons, the Roller as a volume wheel and the switch as a slider.

Buttons, Touch6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

Volume control

Wheel1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Roller: roll right or left for volume up or down.

Touch1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Game and chat mixiBalances separate game and chat audio streams. Mixing Bluetooth and dongle source volume alone does not count. Supported platforms belong in the source note.

Not available

Not available

Remappable controlsiOn-device button, touch or dial functions can be reassigned. Changing EQ alone does not count.

Yes1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Footnote 5: Nothing Headphone (a) allows customisable controls. The Button functions are set in Nothing X.

Yes6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Pages 108-109 voice assistant, Quick Access, touch control enable/disable and NC/ambient button cycle can be configured. This does not imply arbitrary physical button remapping.

Wear detection

No3Reviewtechradar.com/audio/wireless-headphones/nothing-headphone-a-reviewRead 15 October 2026No auto-pause feature (wearer detection).12Reviewexpertreviews.co.uk/technology/headphones-audio/nothing-headphone-a-reviewRead 15 October 2026The (1) have wear detection and the (a) do not.

Yes6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Pages 15-17 built-in proximity sensor, automatic pause/resume and power off after removal.

Voice assistant

ChatGPT1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: the Button can start ChatGPT. Footnote 7 says the default on iOS and Android is an AI smart assistant.

Google Assistant, Amazon Alexa, Google app, Siri6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Pages 99-107 separate Google Assistant, Alexa, Android Google app and iPhone Siri chapters. Google Assistant is Android only. Google app/Siri activate by touch, not their wake words. App/network/region eligibility and mutually exclusive assigned assistants apply.

Comfort and build

5 of 11 differ

Headband type

Not available

Not available

Headband material

Liquid silicone1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: form-fitting headband made of liquid silicone.

Not available

Frame material

Flexible steel arms with metal injection molded hinges and a glass-fibre reinforced nylon slider1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: flexible steel arms, Metal Injection Molding hinges and a sliding component of 55% glass fibre reinforced nylon. Trusted Reviews says the housings are plastic with steel hinges.

Not available

Ear cup material

Plastic13Reviewtrustedreviews.com/reviews/nothing-headphone-aRead 15 October 2026Housings are all plastic apart from steel hinges. SoundGuys also calls the chassis mainly plastic.

Matte plastic9Reviewsoundguys.com/sony-ult-wear-review-113412Read 5 October 2026Exact use section explicitly matte plastic outside ear cups. No generic material is assigned to other parts.

Ear pad material

Memory foam with leatherette1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: memory foam ear cups. Trusted Reviews says the cushions are covered with leatherette over memory foam.13Reviewtrustedreviews.com/reviews/nothing-headphone-aRead 15 October 2026Ear cushions covered with a leatherette material with soft memory foam underneath.

Faux leather9Reviewsoundguys.com/sony-ult-wear-review-113412Read 5 October 2026Exact ear pad paragraph explicitly padding covered in faux leather.

Replaceable ear pads

Not available

Not available

Ear pad attachmentiHow a replacement ear pad attaches to the ear cup, not how the decorative outer cover attaches. A press-fit or snap-on pad counts as clip.

Not available

Not available

Ear pad openingiUsable opening inside an ear pad, excluding the outer cushion. Depth is the internal space between pad surface and driver cover.

Not available

Not available

Ear tips included

Not available

Not available

Dust and water rating

IP521Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table and page text: IP52 dust and water resistance. Footnote 9 says the tests are Nothing laboratory results.

Not available

User-replaceable parts

Not available

Not available

Software

1 of 3 differ

Companion app

Nothing X1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Footnote 6: Nothing X app.

Sony | Sound Connect8Maker product pagesony.jp/headphone/products/ULT_WEAR/feature_6.htmlRead 5 October 2026Exact current product page names Sound Connect, formerly Headphones Connect. The 2024 manual uses the older app name. No app EQ profile persistence or complete preset list inferred from two example names.

App platforms

Android, iOS1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Footnote 6: Nothing X is on Google Play and the iOS App Store.

Android, iOS6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Page 110 Apple App Store and Google Play listings. Desktop computer playback is distinct from mobile companion app support.

User firmware updates

Yes16Reviewheadphonecheck.com/test/nothing-headphone-aRead 15 October 2026Firmware updates can be installed directly through the Nothing X app.

Yes6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026

Dimensions and weight

2 of 2 differ

Headset weightiPublished headset mass without detachable cable or microphone when stated. A fixed cable remains included. Any unqualified maker weight is identified in the source note.

310g(10.9 oz)1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table: Headphones weight 310 G.

255g(9 oz)1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026Approximate maker weight excluding cable. SoundGuys metadata 253 g is not explicitly a scale measurement and is not substituted.

Headset dimensionsiBody size with headband upright and ear cups in their normal wearing position. Width is across the head, height is top to bottom, and depth is front to back. Folded or flat-swivel dimensions are not substituted.

Width177Height190.4Depth78mm(7 × 7.5 × 3.1 in)1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Spec table labels: Height 177.0 mm, Width 78.0 mm, Depth 190.4 mm. Those labels do not fit a wearing orientation. A 78 mm width cannot be across the head. Tom's Guide lists 7 x 3.1 x 7.6 in. The values are stored as across the head 177.0, top to bottom 190.4 and front to back 78.0. The maker does not state the headband or cup position.

Not available

Certifications

1 of 3 differ

Hi-Res Audio

Hi-Res Audio, Hi-Res Audio Wireless1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Page text: Hi-Res Audio certified for wired and wireless listening.

Not available

Communication certifications

Not available

Not available

FCC ID

Not available

Not available

Other certifications

Not available

Not available

In the box

3 of 3 differ

In the box

Headphone (a), Carry pouch, 3.5 mm audio cable (1.2 m), USB-C cable (1.2 m) for charging and USB audio, Quick start guide1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026In the box: Headphone x1, Carry pouch x1, 3.5 mm audio cable (1.2M) x1, USB-C cable (1.2M) x1 (charging and USB Audio), QSG x1.

Sony ULT WEAR headphones, Carrying case, USB-A to USB-C cable, Headphone cable, Documents6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Page 9 exact included-item list. No AC adapter or airline adapter is listed.

Cables includediSupplied playback, charging, dongle and adapter cables. A permanently attached headset cable is included and named as fixed.

ANothing Headphone (a)

Type	Length (m)	Count
3.5 mm audio cable	1.2	1
USB-C cable for charging and USB audio	1.2	1

Source1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026In the box list. Lengths 1.2 m each.

BSony ULT WEAR

Type	Length (m)	Count
USB-A to USB-C charging cable	0.2	1
3.5 mm stereo headphone cable	1.2	1

Source6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Printed page 9 supplies one USB-A to USB-C charging cable and one headphone cable. The complete individual lengths are published by the separate Japanese maker accessory list.14Maker product pagesony.jp/headphone/products/ULT_WEARRead 8 October 2026The exact maker supplied-accessory list states a headphone cable approximately 1.2 m long and a USB-A to USB-C cable approximately 20 cm long. The original guide separately confirms one of each. This preserves the supplied charging-cable length without adopting optional aftermarket cables.

Carrying caseiSupplied carrying case or pouch. A retail carton does not count as a carrying case.

Soft1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026Carry pouch 270 x 230 x 15 mm, 30 g. Expert Reviews and Trusted Reviews describe a drawstring fabric pouch.

Hard13Reviewexpertreviews.co.uk/technology/headphones-audio/sony-ult-wear-reviewRead 8 October 2026The exact ULT WEAR What do you get for the money section explicitly lists a supplied hard-shell carrying case. Original Sony Help Guide printed page 9 confirms that the case is included. Only this package fact is used from the review. Optional gSport bundles and other Sony models are excluded.

Links

Not compared

Product page

us.nothing.tech/products/headphone-a1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026

www.sony.jp/headphone/products/ULT_WEAR1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026

Spec sheet

us.nothing.tech/products/headphone-a1Maker product pageus.nothing.tech/products/headphone-aRead 15 October 2026

www.sony.jp/headphone/products/ULT_WEAR/spec.html1Maker product pagesony.jp/headphone/products/ULT_WEAR/spec.htmlRead 5 October 2026Exact Japanese specification table directly opened, decoded CP932. Closed dynamic 40 mm dome, neodymium magnet. No diaphragm material or physical drivers-per-side count is inferred.

Manual

Not available

helpguide.sony.net/mdr/2981/v1/en/print.pdf6Owner's manualhelpguide.sony.net/mdr/2981/v1/en/print.pdfRead 5 October 2026Full 144-page English Help Guide directly opened. Runtime table page 25 and continuation page 26 visually checked. Exact ULT WEAR, copyright 2024, reference 5-055-975-11(2).

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.

1year7Maker product pageus.nothing.tech/pages/terms-of-salesRead 15 October 2026US store terms, section 6.8: Headphones and other electronic devices have a limited warranty of twelve (12) months. This is the US store and other regions can differ. The Amazon listing also says 1 year manufacturer.

Not available

Both are also in the API. Back to all headsets and headphones.