Headsets and headphones / Compare

CMF Headphone Pro vs Sony WH-1000XM4C

A

Product A: CMF

Headphone Pro

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B

Product B: Sony

WH-1000XM4C

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Only differences

ACMF Headphone Pro

BSony WH-1000XM4C

General

5 of 8 differ

Series

Not available

1000X4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Current maker press names 1000X series.

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

B175, 69744342267221Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026Original manufacturer FCC manual identifies B175. Current US maker variant payload labels Dark Grey SKU 6974434226722. The numeric SKU is not stored as a GTIN without a barcode label.26Maker spec sheet (PDF)s3.zoommer.ge/site/certificate/nothing-cmf-headphone-pro.pdfRead 8 October 2026The signed original maker EU Declaration of Conformity identifies physical model B175 and battery M653035. Regulatory model identity is independent of the US color SKU. The signature date is not a retail release date.

YY30131Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Page 1 cover explicitly names this regulatory model.

GTIN / EAN

Not available

454873617980610Retailer pageargos.co.uk/product/9899456Read 7 October 2026Exact Black model WH1000XM4CB.CE7 product details table, EAN 4548736179806. Applies to this UK/EU Black SKU only, not every color or US bundle.

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

29 September 202518Reviewsoundguys.com/the-cmf-headphone-pro-packs-high-end-specs-for-a-low-price-tag-145307Read 8 October 2026The September 29, 2025 launch report documents the announcement and separates UK/EU same-day availability from October 7 US availability. The partner press release corroborates the regional sales dates.

7 September 20263Press releasesony.mediaroom.com/2026-09-07-Sony-Electronics-Introduces-WH-1000XM4C-M4-2nd-Gen-Wireless-Noise-Cancelling-Headphones-and-Updates-Popular-Mid-and-Entry-Level-Wireless-Headphones-with-WH-CH730N-and-WH-CH530Read 7 October 2026Dated maker release, announcement date separate from first retail availability.

Status

Available1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The exact Dark Grey US variant payload states availableForSale true.

Available10Retailer pageargos.co.uk/product/9899456Read 7 October 2026Exact current Black product has price, delivery and purchase availability. September first availability remains separately sourced.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Sony WH-1000XM49Reviewsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Exact current review explicitly calls WH-1000XM4 its predecessor. This is the revived M4 branch, not a claim that XM6 is its predecessor.26Reviewsoundguys.com/sony-wh-1000xm4c-launch-162596Read 23 October 2026SoundGuys calls the WH-1000XM4C an updated version of the WH-1000XM4 and calls the XM4 its predecessor.

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.

$9916Press releasestorage.mfn.se/194a0e7c-3d3b-4dc0-bde1-0e70c39715f9/audiodo-and-cmf-by-nothing-expand-partnership-with-new-headphone-pro.pdfRead 8 October 2026The September 30, 2025 Audiodo maker-partner release expressly lists USD 99 and US sales beginning October 7, 2025. Current retail prices and EU regional pricing are not substituted.

$299.993Press releasesony.mediaroom.com/2026-09-07-Sony-Electronics-Introduces-WH-1000XM4C-M4-2nd-Gen-Wireless-Noise-Cancelling-Headphones-and-Updates-Popular-Mid-and-Entry-Level-Wireless-Headphones-with-WH-CH730N-and-WH-CH530Read 7 October 2026US September 7, 2026 manufacturer launch release states suggested retail price USD 299.99.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

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

US1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The current US maker store offers the exact Dark Grey reference.

GB, FR, US3Press releasesony.mediaroom.com/2026-09-07-Sony-Electronics-Introduces-WH-1000XM4C-M4-2nd-Gen-Wireless-Noise-Cancelling-Headphones-and-Updates-Popular-Mid-and-Entry-Level-Wireless-Headphones-with-WH-CH730N-and-WH-CH530Read 7 October 2026US maker launch release offers the M4 2nd Gen through Sony Electronics and authorized US dealers.10Retailer pageargos.co.uk/product/9899456Read 7 October 2026Exact WH1000XM4CB.CE7 current UK listing and delivery availability establish GB.11Press releasesony.fr/presscentre/sony-ravive-ses-incontournables-le-wh-1000xm4c-fait-son-grand-retour-aux-cotes-de-ses-best-sellers-milieu-et-entree-de-gammeRead 7 October 2026France price and availability section explicitly offers the current model in September 2026. UK exact retail listing and US Sony announcement separately establish their markets. Not an exhaustive worldwide list.

ColoursiThe maker's own colour names

Dark Grey1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The reference is the original Dark Grey headset with its fitted Dark Grey cushions. Other headset finishes and separately sold cushion colors are excluded.

Black, Platinum Silver, Lavender7Press releasesony.co.uk/presscentre/sony-introduces-wh-1000xm4c-wireless-noise-cancelling-headphones-and-updates-popular-mid-and-entry-level-wireless-headphones-with-wh-ch730n-and-wh-ch530Read 5 October 2026Exact WH-1000XM4C color list. Hello Kitty collaboration does not change base hardware.

Segment

Music1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker positions the product for music listening and audio playback.

Music2Maker product pagesony.co.uk/headphones/products/wh-1000xm4cRead 5 October 2026Maker music-listening headband headphone category, rather than an INZONE gaming headset.

Design

1 of 7 differ

Form factor

Over-ear1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker explicitly describes its first over-ear headphones.

Over-ear7Press releasesony.co.uk/presscentre/sony-introduces-wh-1000xm4c-wireless-noise-cancelling-headphones-and-updates-popular-mid-and-entry-level-wireless-headphones-with-wh-ch730n-and-wh-ch530Read 5 October 2026Exact product section explicitly comfortable over-ear design.

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

Closed11Spec databasesoundguys.com/product/cmf-by-nothing-headphone-proRead 8 October 2026The exact Acoustic Design field states Closed-back. Tom's Guide specifications corroborate this.

Closed5Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specificationsRead 7 October 2026Same exact maker table Headphone Type Closed.

Wearing style

Headband1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker comfort section describes the adjustable headband. The original guide documents adjustment by sliding the arms.

Headband1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Location and function of parts chapter labels the headband and left/right units.

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

Flat12Reviewsoundguys.com/cmf-headphone-pro-review-a-solid-b-side-146595Read 8 October 2026The exact review states that the headphones rotate flat for storage but do not fold inward.

Flat and inward4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 13 storing: rotate both units flat, fold one unit toward headband. Both flat swivel and inward fold proved.

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

Yes12Reviewsoundguys.com/cmf-headphone-pro-review-a-solid-b-side-146595Read 8 October 2026The exact design discussion explicitly describes flat rotation of the ear cups.

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Same page 13 explicitly rotate units to flatten.

RGB lighting

Not available

Not available

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

Not available

Not available

Drivers and sound

10 of 20 differ

Driver type

Dynamic11Spec databasesoundguys.com/product/cmf-by-nothing-headphone-proRead 8 October 2026The exact product specifications explicitly state Dynamic driver. Voice-coil material alone is not used as transducer-type proof.

Dynamic13Retailer pagecrutchfield.com/p_158XM4V2BK/Sony-WH-1000XM4C-Black.htmlRead 7 October 2026Exact current M4 2nd Gen product details explicitly identify dynamic 40 mm drivers. Public indexed product text retrieved. No older WH-1000XM4 driver fact transferred. Independently reproduced actual public indexed Product Highlights under exact M4C Black URL. Live normal curl 403 is not bypassed, legacy XM4 rows excluded.

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

40mm1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The labelled Drivers table and Packed with Power section state 40 mm. The 16.5 mm copper voice coil is not a driver diameter.

40mm5Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specificationsRead 7 October 2026Public indexed exact maker specification cells: 40 mm playback driver. Direct fetch intermittent.

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

Not available

Not available

Diaphragm material

PEN+PU dome with nickel plating1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The labelled Diaphragm table states PEN+PU dome material and nickel plating. Magnet material is not stated.

Liquid Crystal Polymer (LCP)6Maker product pagesony.co.uk/headphones/products/wh-1000xm4c/feature-2Read 7 October 2026Powerful 40 mm drivers paragraph explicitly LCP diaphragms, not merely a coating.

Magnet

Not available

Neodymium14Retailer pagecurrys.co.uk/products/sony-wh1000xm4c-wireless-bluetooth-noisecancelling-headphones-lavender-10310256.htmlRead 7 October 2026Exact current Lavender technical specifications table, Driver type: Neodymium drivers. Shared M4C hardware, not its pad or diaphragm material.

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 HzMax20 kHz11Spec databasesoundguys.com/product/cmf-by-nothing-headphone-proRead 8 October 2026The exact product specifications state 20 to 20,000 Hz acoustic frequency response. Tom's Guide independently labels the same frequency response. No mode, tolerance, or test level is stated. The maker's ambiguous RF label is not used as transmission bandwidth proof.

Min4 HzMax40 kHz4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 119: 4 Hz to 40 kHz IEC, headphone cable with power on. Not passive acoustic range.

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 HzMax40 kHz5Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specificationsRead 7 October 2026Same table A2DP transmission band at LDAC 96 kHz sampling/990 kbps. 44.1 kHz band 20 Hz to 20 kHz. Not acoustic response.

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.

16Ω11Spec databasesoundguys.com/product/cmf-by-nothing-headphone-proRead 8 October 2026The exact product specifications state 16 ohms. The Tom's Guide specification table agrees. Frequency and powered/passive measurement state are unspecified. Unverified comparison sites give conflicting figures and are excluded.

16Ω4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 119: 16 ohms at 1 kHz headset off. Powered figure 40 ohms.

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

101dB4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 119: 101 dB/mW headset off. Powered 106 dB/mW. No older XM 4 value transferred.

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 mW4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 119 explicitly dB/mW.

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.

Not available

Not available

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

Not available

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.

Yes1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The exact maker Personal Sound feature uses Audiodo to create a hearing profile through a three-minute test in Nothing X. The resulting profile is stored directly on the headphones and remains applied across connected devices. This is hearing-test personalization, separate from the manual three-band equalizer and Energy Slider.

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

Yes24Maker product pagesony.com/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/software/00269130Read 7 October 2026Exact WH-1000XM4C support-linked current Sound Connect page explicitly says smartphone-configured Equalizer carries over to PC without PC app. Actual model EQ independently supported by exact guide and maker sound page. Active Bluetooth route. Generic model-dependent other features are not inherited, passive analog EQ unproved.

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

312Reviewsoundguys.com/cmf-headphone-pro-review-a-solid-b-side-146595Read 8 October 2026The exact reviewer reports a three-band custom EQ in Nothing X. Firmware 1.0.1.40. No advanced Headphone (1) parametric EQ is transferred.

106Maker product pagesony.co.uk/headphones/products/wh-1000xm4c/feature-2Read 7 October 2026Fine-tune paragraph explicitly 10-band equalizer.

EQ presets

Pop, Rock, Electronic, Enhance Vocals, Classical20Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026The exact equalizer support article names five default profiles: POP, ROCK, ELECTRONIC, ENHANCE VOCALS, and CLASSICAL. Custom mode is not counted as a named preset. Marketing prose calls six preset EQs but does not name a sixth.

Hard, Soft, Heavy, Clear, Game9Reviewsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Current-model measured EQ chart tabs in public article data name these five presets. Regional Apache 207 future profile excluded.

Volume limit

Not available

Not available

Spatial audio

1 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/cmf-headphone-proRead 8 October 2026The maker explicitly names Static Spatial Audio with Cinema and Concert modes. These are supported headphone processing modes. No Dolby license or dynamic head tracking is inferred.

360 Reality Audio4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026App page 7 About 360 Reality Audio, supported service/content required.

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

Not available

Not available

Noise cancelling

6 of 10 differ

Active noise cancelling

Yes5Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026The exact support article explicitly confirms Active Noise Cancellation.

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026App page 7 ANC and noise-canceling chapter.

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

Hybrid1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The labelled Noise Cancellation Type table states Hybrid ANC.

Hybrid4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Parts pages 14-16 identify external and internal noise-canceling microphones.

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

Not available

415Maker product pagesony.co.uk/headphones/products/wh-1000xm4c/feature-1Read 7 October 2026Noise cancellation paragraph explicitly two microphones on each earcup. Four across both earcups. Help Guide parts chapter independently identifies internal and external ANC microphones. This is not the voice microphone count.

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

Yes1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker explains automatic movement between strong, moderate, and light cancellation based on surroundings. Adaptive is not counted as an extra manual strength level.

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026App page 7 automatically adjusts noise cancellation based on detected actions.

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

315Reviewtomsguide.com/audio/headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026The exact ANC discussion names Low, Mid, High, and Adaptive within ANC On. Only the three fixed strength levels are counted. Adaptive, Transparency, and Off are excluded.

Not available

ANC attenuation (claimed)

40dB5Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026The exact ANC support article states up to 40 dB. Frequency, weighting, and test method for this maximum are unspecified. The technical table also lists 2000 Hz as Frequency range, which does not establish a measurement frequency. The separate 99% marketing limit is not converted to dB.

Not available

Transparency mode

Yes1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker expressly documents Transparency Mode to hear surroundings.

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026App page 7 Ambient Sound Control.

Adjustable transparency

Not available

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Same page adjusts ambient mode.

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

Not available

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026App page 7 explicitly automatic Speak-to-Chat audio detection and settings.

Wind noise reduction

Yes1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The labelled Noise Cancellation Features table states Wind Noise Conduction Mesh. This is a physical mesh feature, not an inferred selectable wind-processing mode.

Not available

Measured

4 of 21 differ

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

Changing the bass slider from minimum to maximum increases low-frequency output. The reviewer reports upper-frequency roll-off above about 8 kHz.12Reviewsoundguys.com/cmf-headphone-pro-review-a-solid-b-side-146595Read 8 October 2026SoundGuys compares minimum and maximum bass-slider responses against its preference curve. Firmware 1.0.1.40. Host and codec are unspecified. The reported approximately 8 dB slider difference is not converted into a target-relative averaged bass metric.

Even bass, recessed upper mids from about 1.6 to 3.4 kHz, a dip near 7 kHz and extended upper treble.16Measurementsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Objective Measurements prose and current product chart, Default profile. SoundGuys published method uses B&K 5128 and SoundCheck. Connection, codec and firmware not stated. No numerical deviation from target inferred.17Measurementsoundguys.com/how-we-testRead 7 October 2026Published headphone method: B&K 5128 head and torso simulator, 1704C-102 interface and SoundCheck. Do not infer unreported M4C codec, firmware or connection.

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

Recorded calls remain intelligible, but speech sounds unnatural and includes some pops and crackles.12Reviewsoundguys.com/cmf-headphone-pro-review-a-solid-b-side-146595Read 8 October 2026The exact reviewer reports intelligible speech and noise rejection with some pops and crackles. Recordings cover ideal, office, street, wind, and reverberant conditions. Firmware 1.0.1.40. Host, codec, and call processing settings are unspecified.

Street and incidental noise are attenuated. Office noise and wind are less effectively suppressed. The review unit also had call crackles and dropouts near three previously paired devices.16Measurementsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Current article microphone test section and ideal, office, street, wind and reverberant samples. SoundGuys method uses a calibrated artificial mouth and recorded speech with controlled background noise. Source unit caveat retained. Connection codec and firmware unstated.17Measurementsoundguys.com/how-we-testRead 7 October 2026Published speech method uses calibrated artificial mouth, recorded speech and controlled ideal, background-noise, wind and reverberation conditions.

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.

ACMF Headphone Pro

ANC	Hours (h)
Yes	43.15
Yes	49.5

Source12Reviewsoundguys.com/cmf-headphone-pro-review-a-solid-b-side-146595Read 8 October 2026First row: SoundGuys standardized test measured 43 hours 9 minutes with ANC on. Firmware 1.0.1.40, one-week supplied review unit. Connection, host, codec, playback level, and ANC strength are unspecified. Second row has a separate TechRadar source below.14Reviewtechradar.com/audio/wireless-headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026TechRadar depleted a full battery and measured 49.5 hours with ANC enabled during its four-week review. Its source devices include MacBook Pro, iPhone 15 Pro Max, and FiiO M15S, but the exact battery-test connection, codec, volume, ANC strength, and firmware are unspecified. The separate row is not pooled with SoundGuys.

BSony WH-1000XM4C

Not available

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

49.5h=CalculatedFrom Measured battery life

Not available

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.

Not available

Not available

Microphone

4 of 16 differ

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

Built-in6Maker product pagesupport.nothing.tech/hc/en-us/sections/38910365859601-How-toRead 8 October 2026The controls and call documentation describe the on-headphone microphone, including its configurable on/off function. No detachable boom is supplied.25Reviewrtings.com/headphones/reviews/cmf/headphone-proRead 8 October 2026The exact public Office Work verdict explicitly describes an integrated microphone. No boom or in-line microphone is substituted.

Built-in1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Parts and controls chapter identifies the integrated voice microphone(s).

Microphone element

Not available

Not available

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

Not available

Not available

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

31Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The feature table states a three-microphone ENC architecture for calls. Its separate five-microphone total is not substituted for this voice count or an unproven ANC count.

Not available

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.

528Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The exact maker Noise Cancellation technical table explicitly states 5 MICS TOTAL. This is the complete physical headset total. The separate three-microphone ENC call architecture remains a voice-role count, and no ANC count is derived from those overlapping roles.

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.

Not available

Not available

Flip to mute

Not available

Not available

Mute button

Yes6Maker product pagesupport.nothing.tech/hc/en-us/sections/38910365859601-How-toRead 8 October 2026The support controls list explicitly includes Mic on/off as an optional configurable button function on all platforms. This requires selecting the function in the app.

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

No13Reviewtechradar.com/audio/wireless-headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026The exact Don't buy section explicitly says the product lacks sidetone for hearing your own voice during calls.

Yes1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Receiving and making calls chapters explicitly play the wearer voice through the headphones. Adjustable sidetone is not assumed.

Adjustable sidetone

Not available

Not available

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.

Analog, Bluetooth5Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026The exact Audio formats and wired connection articles document Bluetooth and analog AUX playback. USB-C is charging only.

Analog, Bluetooth4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Bluetooth connection chapters plus page 72 analog cable. USB charging is not USB audio.

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

Not available

3.5 mm TRS5Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specificationsRead 7 October 2026Same table stereo mini plug, TRS audio-only cable confirmed by exact review.

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

3.5 mm10Owner's manualfccid.io/2AZEQ-B175/User-Manual/Users-Manual-8638814.pdfRead 8 October 2026The original guide expressly labels the left ear cup 3.5 mm Audio In.

3.5 mm4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 72 stereo-mini cable/input-jack diagram.

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/cmf-headphone-proRead 8 October 2026The maker package inventory contains only the supplied 1.2 m analog cable. The reviewer's approximate 2.7-foot cable description does not override the manufacturer claim.

1.2m5Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specificationsRead 7 October 2026Same table approximate 1.2 m headphone cable, charging cable not included in EU base.

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-C10Owner's manualfccid.io/2AZEQ-B175/User-Manual/Users-Manual-8638814.pdfRead 8 October 2026The original English Quick Start Guide identifies USB-C Charge In on the right ear cup.

USB-C1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Parts and controls labels USB Type-C charging port.

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.

No5Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026The exact wired connection article expressly says 3.5 mm aux-in is supported and USB-C Audio is not.

No9Reviewsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Connectivity section explicitly cannot listen via USB-C.

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.

No13Reviewtechradar.com/audio/wireless-headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026The exact review explicitly states that wired 3.5 mm listening requires the headphones powered on and does not work passively.

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 72 explicitly playback with headset off. Built-in voice mic unavailable through supplied cable, smartphone microphone used.

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

Not available

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/cmf-headphone-proRead 8 October 2026The labelled Connection range table states 10 m. Indoor or line-of-sight test conditions are not specified. The Tom's Guide generic Bluetooth 800-foot statement is excluded.

10m1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Printed page 104: maximum Bluetooth communication distance approximately 10 m. Varies with obstacles and electromagnetic environment. Maker claim, not a measured range.

Bluetooth

5.45Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026The exact Bluetooth version article states Bluetooth 5.4.

6.05Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specificationsRead 7 October 2026Exact model specification table explicitly Bluetooth Version 6.0. This does not establish LE Audio or Auracast support by itself.

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

SBC, AAC, LDAC5Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026The exact Audio formats article expressly lists SBC, AAC, and LDAC. iOS lacks LDAC support according to the separate LDAC instructions.6Maker product pagesupport.nothing.tech/hc/en-us/sections/38910365859601-How-toRead 8 October 2026The exact LDAC instructions state 96 kHz, 24-bit, and 990 kbps for Bluetooth streaming with a compatible Android phone and high-quality audio enabled. Higher-bitrate LDAC recommends disabling Dual Connection. These limits apply to LDAC Bluetooth playback. The headset does not support USB-C cable audio.

SBC, AAC, LDAC1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Supported Codecs chapter gives the exact supported list. LDAC requires compatible host and sound-quality-priority setting.

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

Not available

No9Reviewsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Connectivity section explicitly reports absent LE audio features on this exact model. Future update is speculation, not stored.

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

Not available

No9Reviewsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Review explicitly No Auracast. Bluetooth 6.0 alone is not Auracast proof.

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.

Yes6Maker product pagesupport.nothing.tech/hc/en-us/sections/38910365859601-How-toRead 8 October 2026The exact Dual Connection instructions document two simultaneous Bluetooth source connections with audio switching. This is disabled by default and requires enabling in Nothing X.

Yes1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Connecting to 2 devices chapter, page 69. Audio streams switch, not mix.

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

26Maker product pagesupport.nothing.tech/hc/en-us/sections/38910365859601-How-toRead 8 October 2026The instructions repeatedly specify two connected devices. A third device can preempt one connection. This is not three simultaneous devices or pairing memory.

21Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Same chapter page 69 explicitly two devices simultaneously.

Paired devices remembered

Not available

81Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Android pairing page 42: up to eight devices remembered, oldest registration replaced.

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 Pair23Maker product pagesupport.nothing.tech/hc/en-us/articles/38910344910225-Does-CMF-Headphone-Pro-support-Google-Fast-PairRead 8 October 2026The exact product support article explicitly confirms the named quick-pairing feature. Google Fast Pair needs a compatible Android source. Microsoft Swift Pair is the Windows route. Neither adds USB audio.24Maker product pagesupport.nothing.tech/hc/en-us/articles/38910328918545-Does-CMF-Headphone-Pro-support-Mircosoft-Swift-PairRead 8 October 2026The exact product support article explicitly confirms the named quick-pairing feature. Google Fast Pair needs a compatible Android source. Microsoft Swift Pair is the Windows route. Neither adds USB audio.

Google Fast Pair18Maker product pagesony.co.uk/headphones/products/wh-1000xm4c/feature-5Read 7 October 2026Google Fast Pair Android one-tap pairing paragraph and logo. Swift Pair claims for CH730N and CH530 are not transferred to M4C.

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.

Yes7Maker product pagesupport.nothing.tech/hc/en-us/articles/38910343614737-Does-CMF-Headphone-Pro-support-low-latency-modeRead 8 October 2026The exact support article confirms low-latency mode.

Not available

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

ACMF Headphone Pro

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

Source7Maker product pagesupport.nothing.tech/hc/en-us/articles/38910343614737-Does-CMF-Headphone-Pro-support-low-latency-modeRead 8 October 2026The maker states less than 120 ms when connected to a Nothing Phone in Game Mode. The stored value is the upper bound of that claim, not a measured result. Codec and firmware are unspecified. Generic analog zero-latency reviewer prose is not stored as an end-to-end result.

BSony WH-1000XM4C

Not available

Compatibility

1 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, Windows, macOS20Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026Exact maker compatibility support names Android 6.0 or later and iOS 13 or later. Swift Pair support and exact SoundGuys setup instructions establish Windows Bluetooth. The exact Tom's Guide reviewer listened through the supplied analog cable on a MacBook Air M2. No console route is inferred from a physical jack.21Reviewtomsguide.com/audio/headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026Exact maker compatibility support names Android 6.0 or later and iOS 13 or later. Swift Pair support and exact SoundGuys setup instructions establish Windows Bluetooth. The exact Tom's Guide reviewer listened through the supplied analog cable on a MacBook Air M2. No console route is inferred from a physical jack.

Android, iOS, Windows, macOS1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Individual Bluetooth chapters explicitly name Android, iPhone, Windows and Mac. No console path inferred.

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.

ACMF Headphone Pro

Platform	Connection	Microphone works
Android	Bluetooth	Yes
iOS	Bluetooth	Yes
Windows	Bluetooth	Not available
macOS	Analog	No

Source20Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026Android/iOS Bluetooth playback and voice calls are explicitly documented by maker compatibility and controls articles. Windows Bluetooth is documented by exact Swift Pair and reviewer pairing instructions. The exact Tom's Guide reviewer used analog playback on a MacBook Air M2 and explains that the supplied cable does not carry headphone microphone calls. Unknown Windows microphone behavior is omitted.21Reviewtomsguide.com/audio/headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026Android/iOS Bluetooth playback and voice calls are explicitly documented by maker compatibility and controls articles. Windows Bluetooth is documented by exact Swift Pair and reviewer pairing instructions. The exact Tom's Guide reviewer used analog playback on a MacBook Air M2 and explains that the supplied cable does not carry headphone microphone calls. Unknown Windows microphone behavior is omitted.

BSony WH-1000XM4C

Platform	Connection	Microphone works
Android	Bluetooth	Yes
iOS	Bluetooth	Yes
Windows	Bluetooth	Yes
macOS	Bluetooth	Yes

Source1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Android and iPhone pairing plus receiving/making calls chapters establish Bluetooth HFP/HSP speech. Printed page 98 computer video-call section selects WH-1000XM4C Hands-Free for both speaker and microphone and explicitly refers to Windows 11 and Mac pairing. Console and analog voice paths excluded.

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.

720mAh4Maker product pagesupport.nothing.tech/hc/en-us/articles/38910303499409-What-is-the-battery-capacity-of-CMF-Headphone-ProRead 8 October 2026The exact support article states 720 mAh. The maker technical table agrees. Rated versus typical capacity is not specified. This is the headset battery, not a nonexistent case battery.

930mAh19Retailer pagedigitec.ch/en/s1/product/sony-wh-1000xm4c-dnc-27-h-wireless-headphones-73105609Read 7 October 2026Exact M4C technical battery table: 930 mAh. Headset capacity, not an external case or combined packs. Minimum/typical qualification not published. Maker Reference Guide confirms rechargeable 3.7 V lithium-ion battery but does not publish mAh. No Wh-derived capacity. Independently corroborated by exact Black CE7 RTV Euro AGD table, which explicitly labels 930 mAh nominal. No Wh-derived number.25Retailer pageeuro.com.pl/sluchawki/sony-wh-1000xm4c-anc-nauszne-bluetooth-czarny.bhtmlRead 7 October 2026Exact Black WH-1000XM4CB.CE7 table explicitly Pojemność nominalna 930 mAh. Published nominal headset battery capacity, corroborates retained Digitec claim, not inferred from 3.441 Wh or 3.7 V.

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

No10Owner's manualfccid.io/2AZEQ-B175/User-Manual/Users-Manual-8638814.pdfRead 8 October 2026The original English safety section expressly instructs users not to replace the battery themselves. Normal battery hot swapping is unsupported.

Not available

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

Not available

110Retailer pageargos.co.uk/product/9899456Read 7 October 2026Exact model product details: Batteries required 1 x Li-Ion (included). One supplied headset battery assembly, not a claim about internal cell count.

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.

ACMF Headphone Pro

Connection	ANC	Codec	Hours (h)
Bluetooth	No	AAC	100
Bluetooth	Yes	AAC	50
Bluetooth	No	LDAC	70
Bluetooth	Yes	LDAC	38

Source2Maker product pagesupport.nothing.tech/hc/en-us/articles/38910279111569-What-s-the-battery-life-of-CMF-Headphone-ProRead 8 October 2026The exact support article separately names AAC and LDAC playback with ANC off/on. The current maker technical table matches all four rows at 50% volume. Nothing laboratory temperature is 25°C. The support footnote says AAC even beneath LDAC rows, so the explicitly labelled codec rows govern. Talk and standby durations are excluded. The copied product disclaimer erroneously states 50 hours with ANC off and is not used.

BSony WH-1000XM4C

Connection	ANC	Hours (h)
Bluetooth	Yes	27
Bluetooth	No	34
Analog	Yes	19
Analog	No	32

Source1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Available Operating Time page 32, table visually checked. AAC/SBC Bluetooth ANC on 27 h and ANC/ambient off 34 h. LDAC ANC on 20 h and off 27 h omitted because codec column absent. Powered analog ANC on 19 h and off 32 h. Call and ambient-only rows excluded. EQ, DSEE and additional app functions can shorten these maxima.

Battery life (claimed, max)

100h=CalculatedFrom Claimed battery life

34h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

50h=CalculatedFrom Claimed battery life

27h=CalculatedFrom Claimed battery life

Battery life without ANC (claimed)

100h=CalculatedFrom Claimed battery life

34h=CalculatedFrom Claimed battery life

Charging port

USB-C10Owner's manualfccid.io/2AZEQ-B175/User-Manual/Users-Manual-8638814.pdfRead 8 October 2026The original guide charging diagram identifies USB-C Charge In. Current exact support limits charging input to 5 W.

USB-C1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Charging chapter: USB Type-C cable to the charging port.

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

120min1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The labelled Charging table states Type-C wired charging to full in 120 minutes. The feature text says under two hours. The numeric table estimate is retained without using the copied case-related disclaimer.

180min1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Charging page 30: approximately 3 h, explicitly defined as empty battery to full capacity. Converted to 180 min.

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

5min3Maker product pagesupport.nothing.tech/hc/en-us/articles/38910318874897-Does-CMF-Headphone-Pro-support-fast-chargingRead 8 October 2026The exact current support article states a five-minute charge. The maker technical table agrees.

3min1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Available Operating Time page 32: 3 minutes charging.

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

8h3Maker product pagesupport.nothing.tech/hc/en-us/articles/38910318874897-Does-CMF-Headphone-Pro-support-fast-chargingRead 8 October 2026Five minutes gives eight hours with ANC off or four hours with ANC on. The stored maximum is eight hours with ANC off, AAC, 50% volume, and 25°C laboratory temperature. Marketing prose and older announcements quote four or five hours without consistent ANC conditions and are excluded.

1h1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Same page: approximately 1 h music playback after 3 minutes. Codec and ANC condition of quick-charge result are not published.

Use while charging

Not available

Not available

Charging dock or stand

Not available

Not available

Controls

4 of 6 differ

Controls

Buttons, Volume wheel, Slider6Maker product pagesupport.nothing.tech/hc/en-us/sections/38910365859601-How-toRead 8 October 2026The original guide and current support describe Power/BT and shortcut buttons plus a pressable Roller that controls volume. A separate physical Energy Slider adjusts bass or treble after selecting its tuning mode in Nothing X.

Buttons, Touch4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Parts chapter buttons and touch sensor, page 26-28 touch operations.

Volume control

Wheel6Maker product pagesupport.nothing.tech/hc/en-us/sections/38910365859601-How-toRead 8 October 2026The exact volume article states rolling the knob up/down adjusts playback volume.

Touch4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 27 touch swipe up/down. Analog cable uses source-device controls.

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.

Yes6Maker product pagesupport.nothing.tech/hc/en-us/sections/38910365859601-How-toRead 8 October 2026The support controls list provides optional button functions and bass/treble tuning for the Slider through Nothing X. Essential Space requires Nothing OS.

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 29 assigns NC/AMB button double-press to Quick Access service. Not universal remapping of every control.

Wear detection

No15Reviewtomsguide.com/audio/headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026The exact specification table and design discussion explicitly state no wear detection.

Yes4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026App page 8 plus wearing chapter: music pause/resume and power off based on removal.

Voice assistant

ChatGPT27Maker product pagesupport.nothing.tech/hc/en-us/articles/39520905948689-Why-can-t-I-use-ChatGPT-on-CMF-Headphone-ProRead 8 October 2026The exact CMF Headphone Pro support article documents a configurable button shortcut to ChatGPT Voice. Requires a compatible Nothing or CMF phone, current phone system and Nothing X app, an installed signed-in ChatGPT app, and prior use of ChatGPT Voice. This is phone-app integration, not an independent on-headphone assistant. Unnamed generic phone assistants are not converted into specific Siri or Google Assistant claims.

Google app, Siri4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Pages 100-103 Google app Android/Siri iPhone, hold touch panel more than 1 second. No Hey Siri.

Comfort and build

7 of 11 differ

Headband type

Padded13Reviewtechradar.com/audio/wireless-headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026The exact design discussion describes cushioning across the headband and ear pads.

Padded20Reviewwhathifi.com/headphones/sony-wh-1000xm4cRead 7 October 2026October 5, 2026 current-model review build paragraph explicitly describes padding on both the earpads and headband.

Headband material

PU synthetic leather and memory foam13Reviewtechradar.com/audio/wireless-headphones/cmf-by-nothing-headphone-pro-reviewRead 8 October 2026The exact design section describes polyurethane synthetic leather and memory foam across the headband and ear pads. Steel reinforcement is independently identified by maker support.

Not available

Frame material

ABS plastic shell, PA+GF sliding arms, stainless steel headband strips8Maker product pagesupport.nothing.tech/hc/en-us/articles/38910349693841-What-material-is-the-outer-casing-of-CMF-Headphone-Pro-made-ofRead 8 October 2026The exact material article identifies ABS shell, PA+GF sliding arms, and stainless steel headband strips. The SoundGuys all-plastic description does not override these published internal reinforcement materials.

Not available

Ear cup material

Not available

Plastic21Reviewgizmodo.com/sony-wh-1000xm4c-review-still-kind-of-goated-2000810045Read 7 October 2026Exact current review identifies matte plastic outer earcups. Internal frame and headband material not inferred.

Ear pad material

PU leather with high-resilience memory foam9Maker product pagesupport.nothing.tech/hc/en-us/articles/38910322756881-What-material-are-the-ear-cushions-of-CMF-Headphone-Pro-made-ofRead 8 October 2026The exact cushion material article specifies polyurethane synthetic leather covering and high-resilience memory foam fill.

Faux leather9Reviewsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Current review identifies faux-leather over-ear padding. Polymer chemistry not stated.

Replaceable ear pads

Yes1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker states that cushions twist on and off for cleaning and replacement. Optional colored cushions are sold separately.

Yes9Reviewsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Current-model build section explicitly allows hand removal for cleaning and replacement.

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.

Twist lock1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker describes twisting cushions on and off. Exact SoundGuys review confirms the rotating attachment. This is a twist-lock attachment rather than a clip or magnetic mount.

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

IPX220Maker product pagesupport.nothing.tech/hc/en-us/sections/38910294951441-Product-FeatureRead 8 October 2026The exact Water/dust resistance support article states IPX2 under IEC 60529. There is no certified dust protection. The TechRadar no-IP-rating claim is contradicted by the maker and is not used.

Not available

User-replaceable parts

Ear cushions1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker explicitly permits swapping and cleaning the ear cushions. The original manual prohibits user battery replacement.

Ear pads, Headphone cable1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Exact model guide 72 detachable headphone cable. Pads separately proven by current SoundGuys review. Battery assembly remains report-only because the European reference self-repair sentence could not be independently reread during verification. Normal-operation battery swapping is not inferred.9Reviewsoundguys.com/we-benchmarked-the-revamped-sony-wh-1000xm4c-heres-how-the-new-hardware-performs-163130Read 7 October 2026Build section explicitly allows removing current ear pads by hand for cleaning and replacement.

Software

1 of 3 differ

Companion app

Nothing X1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The Nothing X app section names Nothing X.

Sony | Sound Connect1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Using Sound Connect app chapter explicitly names the current app.

App platforms

Android, iOS1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker app section expressly says Android and iOS. Individual features have phone, OS, and app requirements.

Android, iOS1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Same chapter directs installation from Google Play or Apple App Store.

User firmware updates

Yes1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker app section documents firmware update management.

Yes1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026App chapter lists Update Software and dedicated firmware-update chapter.

Dimensions and weight

1 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.

283g(10 oz)1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The labelled Headphones weight table states 283 g. This is the maker claim. Cushion weight is a separate 45 g entry with unspecified quantity scope and is not added to headset mass.

253g(8.9 oz)1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Specifications chapter: approximate 253 g. Detachable cable inclusion is not stated.

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.

Not available

Not available

Certifications

1 of 3 differ

Hi-Res Audio

Hi-Res Audio, Hi-Res Audio Wireless1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The maker expressly claims wired and wireless Hi-Res certifications. Wireless high-resolution playback requires a compatible LDAC source.

Hi-Res Audio, Hi-Res Audio Wireless6Maker product pagesony.co.uk/headphones/products/wh-1000xm4c/feature-2Read 7 October 2026Exact feature page shows Hi-Res Audio and Hi-Res Audio Wireless logos with LDAC high-resolution description.

Communication certifications

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FCC ID

2AZEQ-B17510Owner's manualfccid.io/2AZEQ-B175/User-Manual/Users-Manual-8638814.pdfRead 8 October 2026The original regulatory document identifies exact FCC ID 2AZEQ-B175. Radio transmit power is not treated as audio amplifier power.

AK8YY301323Regulatory filingfccid.io/AK8YY3013/Letter/02-FCC-Authorization-Letter-9381384Read 7 October 2026Public FCC filing metadata identifies full FCC ID AK8YY3013, product code YY3013 and Sony Corporation. Exact maker manual cover maps WH-1000XM4C to YY3013. Original FCC exhibit fetch returned 403, not treated as a read document.

Other certifications

EU RED 2014/53/EU, EU RoHS 2011/65/EU and 2015/86326Maker spec sheet (PDF)s3.zoommer.ge/site/certificate/nothing-cmf-headphone-pro.pdfRead 8 October 2026English declaration page 2 lists RED 2014/53/EU and RoHS 2011/65/EU and 2015/863. These are maker declarations for B175, not inferred Bluetooth SIG or extra market-availability claims.

360 Reality Audio6Maker product pagesony.co.uk/headphones/products/wh-1000xm4c/feature-2Read 7 October 2026360 Reality Audio section explicitly calls these certified headphones. This is separate from Hi-Res logos and does not prove a bundled paid spatial licence or head tracking.

In the box

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In the box

CMF Headphone Pro, Carry pouch, User guide, Safety and warranty information, 3.5 mm to 3.5 mm audio cable (1.2 m)1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The exact In the box table lists the headset, pouch, guide, safety/warranty information, and one 1.2 m analog cable. No USB charging cable or wall charger is listed. Exact TechRadar review independently confirms both omissions.

Wireless Noise Canceling Stereo Headset, Headphone cable, Carrying case, Documents4Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 5 October 2026Page 12 headset, analog cable, case and documents. USB-A to USB-C cable supplied only for mainland China, omitted from European base.

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

ACMF Headphone Pro

Type	Length (m)	Count
3.5 mm to 3.5 mm audio cable	1.2	1

Source1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The exact package table lists one 3.5 mm to 3.5 mm audio cable, 1.2 m long. No charging cable is supplied. Contact arrangement is not inferred from nominal plug size.

BSony WH-1000XM4C

Type	Length (m)	Count
Headphone cable	1.2	1

Source5Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specificationsRead 7 October 2026One analog cable from guide page 12, published approximate 1.2 m maker length.

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

Soft22Reviewsoundguys.com/cmf-headphone-pro-review-a-solid-b-side-146595Read 8 October 2026The maker box table supplies a Carry Pouch. Exact SoundGuys and TechRadar reviews explicitly describe a cloth/fabric travel bag. This is a soft pouch, not a hard case.

Hard22Retailer pagegalaxus.de/de/s1/product/sony-wh-1000xm4c-dnc-27-h-kabellos-kopfhoerer-73105609Read 7 October 2026Exact M4C technical accessories table identifies Headphone case: Hard Case. Maker includes one carrying case. No old XM4 case specification transferred.

Links

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Product page

us.nothing.tech/products/cmf-headphone-pro1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The exact US Dark Grey selector and public variant payload identify this reference. No Headphone (1) or Headphone (a) values are transferred.

www.sony.co.uk/headphones/products/wh-1000xm4c2Maker product pagesony.co.uk/headphones/products/wh-1000xm4cRead 5 October 2026Exact current maker model page.

Spec sheet

us.nothing.tech/products/cmf-headphone-pro1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The public page payload contains labelled technical specification tables. No separate exact maker datasheet was found. These tables were read from the normally downloaded page HTML.

www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specifications5Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4c/specificationsRead 7 October 2026Official exact-model Specifications page. HTML specification sheet, not a fabricated PDF document.

Manual

fccid.io/2AZEQ-B175/User-Manual/Users-Manual-8638814.pdf10Owner's manualfccid.io/2AZEQ-B175/User-Manual/Users-Manual-8638814.pdfRead 8 October 2026The original 44-page manufacturer FCC exhibit combines safety/warranty information with the multilingual Quick Start Guide. Cover explicitly identifies model B175. This is not a generated third-party manual.

helpguide.sony.net/mdr/3013/v1/en/print.pdf1Owner's manualhelpguide.sony.net/mdr/3013/v1/en/print.pdfRead 7 October 2026Complete current English maker guide, 120 pages. Shared regional sibling model is not added as another product.

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.

1year19Maker product pageus.nothing.tech/pages/terms-of-salesRead 8 October 2026Current US Terms of Sale section 6.8 gives headphones twelve months of limited warranty. This covers the original US maker-store purchase. Statutory rights and other regions are separate.

1year12Maker spec sheet (PDF)content.abt.com/documents/183151/sony-headphones-WH1000XM4CB-warranty.pdfRead 7 October 2026Sony original Video and Audio Limited Warranty card, page 1, one year from original purchase for Sony or authorized-dealer purchases in the US and Canada. Linked by Abt exact WH1000XM4C/B product Warranty anchor. Scanned card visually read. Not an EU statutory-rights duration.

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