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CMF Headphone Pro vs Sony WH-CH730N

Product A: CMF

Headphone Pro

90 of 161 known
Change CMF Headphone Pro

Compare the Sony WH-CH730N with

Product B: Sony

WH-CH730N

89 of 161 known
Change Sony WH-CH730N

Compare the CMF Headphone Pro with

64 of 152 fields differ

Download CSVDownload JSON
  • 37 different values
  • 27 known for one only
  • 33 the same
  • 55 missing for both

Biggest differences

Each bar uses the scale of all 149 headsets and headphones.

  1. Quick chargeA: 8hB: 1hCMF is 8 times higher.
  2. Battery life (claimed, max)A: 100hB: 75hCMF is 25 h higher.
  3. Driver sizeA: 40mmB: 30mmCMF is 10 mm higher.

Weight

0 to 400 g

Headset weight
A283g
B207g

All 161 fields

Every value links to where we found it.

ACMF Headphone Pro
BSony WH-CH730N

General

5 of 8 differ
Series
Not available
CH26Retailer pagesonycentresdirect.co.uk/p-94532-wh-ch730n-wireless-noise-cancelling-headphones-black.aspxRead 7 October 2026Sony Premium Reseller exact model description explicitly names the CH-series. Retain the named family CH, not an invented WH-CH7xx subseries.
Model numbers
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.
YY3006, WHCH730NB.CE71Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Page 1 cover explicitly names this regulatory model.25Retailer pageiwant.cz/Sony-WH-CH730N-bezdratova-sluchatka-cerna-p214471Read 7 October 2026Black CE7 order code only. YY3006 remains the shared regulatory model. Exact colour/order-code mapping in variants. Other colour order codes not inferred.26Retailer pagesonycentresdirect.co.uk/p-94532-wh-ch730n-wireless-noise-cancelling-headphones-black.aspxRead 7 October 2026Black CE7 order code only. YY3006 remains the shared regulatory model. Exact colour/order-code mapping in variants. Other colour order codes not inferred.
GTIN / EAN
Not available
454873617972125Retailer pageiwant.cz/Sony-WH-CH730N-bezdratova-sluchatka-cerna-p214471Read 7 October 2026Known Black CE7 EAN 4548736179721 maps only to that exact colour/order-code variant. Other colours are not assigned this EAN.26Retailer pagesonycentresdirect.co.uk/p-94532-wh-ch730n-wireless-noise-cancelling-headphones-black.aspxRead 7 October 2026Known Black CE7 EAN 4548736179721 maps only to that exact colour/order-code variant. Other colours are not assigned this EAN.
Announced
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 5 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.
Available11Maker product pageelectronics.sony.com/audio/headphones/headband/p/whch730n-wRead 7 October 2026Exact current US WH-CH730N/W offered for purchase. Original September 7 release separately says available now. Current discounted price is not substituted for launch MSRP.
Predecessor
Not available
Sony WH-CH720N12Reviewsoundguys.com/sony-wh-ch730n-review-162849Read 7 October 2026Explicit model replacement. Existing predecessor product slug independently checked in repository. Maker release also identifies a predecessor model without its number.
Successor
Not available
Not available
Launch price (US)
$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.
$179.999Press 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 5 October 2026Model-specific pricing and availability $179.99 USD suggested price. Not regional EUR amount.
Launch price (EU)
Not available
Not available
Markets
US1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The current US maker store offers the exact Dark Grey reference.
GB, US, JP8Press 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 7 October 2026Documented markets only, not exhaustive worldwide coverage. UK/Europe release, direct current US maker store, and exact Japanese maker product table establish these regions. Regional retail bundles/USB charging cable and market-specific warranty are separately scoped in source notes.27Maker product pageelectronics.sony.com/audio/headphones/headband/p/whch730n-wRead 7 October 2026Exact current US WHCH730N/W store. Market presence only, not universal bundle/warranty.28Maker product pagesony.jp/headphone/products/WH-CH730N/specRead 7 October 2026Exact Japanese maker model page, current NEW product. Market presence, not inherited regional cable or warranty.
Colours
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, White, Pink, Beige, Blue8Press 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 7 October 2026European maker launch list. US calls Beige Oat, not a second physical headset.
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-ch730nRead 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-ear6Maker product pagesony.co.uk/headphones/products/wh-ch730nRead 5 October 2026Maker comfort section explicitly over-ear.
Ear cup enclosure
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.jp/headphone/products/WH-CH730N/specRead 5 October 2026Headphone 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/3006/v1/en/print.pdfRead 7 October 2026Location and function of parts chapter labels the headband and left/right units.
Folding
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 inward15Maker product pagesony.co.uk/headphones/products/wh-ch730n/feature-2Read 7 October 2026All-day Comfort maker figure caption and inspected original figure feature2-2_M-9: earcup surfaces rotate flat and an earcup hinges inward within the headband. Both mechanisms visible, not a dimensional estimate. What Hi-Fi hands-on explicitly says hinges swivel side-to-side and now up and inwards. No CH720N-only folding facts inherited.
Swivelling ear cups
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.
Yes1Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Wearing chapter confirms rotating unit axis. Maker folded-product image and exact JB Hi-Fi lightweight over-ear design can swivel and fold corroborate rotation relative to headband. Tilting alone is not the evidence.
RGB lighting
Not available
Not available
Lighting zones
Not available
Not available

Drivers and sound

11 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.
Dynamic5Maker product pagesony.jp/headphone/products/WH-CH730N/specRead 5 October 2026Headphone driver unit: dynamic, 30 mm. Exact CH730N, not CH720N.
Driver size
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.
30mm5Maker product pagesony.jp/headphone/products/WH-CH730N/specRead 5 October 2026Same published 30 mm largest playback driver.
Drivers per side
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.
Not available
Magnet
Not available
Not available
Frequency response (wired or passive)
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.
Min6 HzMax20 kHz4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026Page 114: 6 Hz to 20 kHz IEC, headphone cable with power on. JP spec table calls JEITA instead. Current English guide test standard retained.
Wireless audio transmission band
Not available
Min20 HzMax20 kHz5Maker product pagesony.jp/headphone/products/WH-CH730N/specRead 5 October 2026A2DP transmission band 20 Hz to 20 kHz at 44.1 kHz sampling, not acoustic driver response.29Maker product pagesony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-ch730n/specificationsRead 7 October 2026UK exact expanded table explicitly 20 Hz to 20000 Hz at sampling frequency 44.1 kHz. A2DP transport range, not acoustic playback response. Bitrate not published.
Impedance (passive when specified)
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.
25Ω4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026Page 114: 25 ohms at 1 kHz with headset off. Powered figure is 100 ohms.
Sensitivity (passive when specified)
Not available
100dB4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026Page 114: 100 dB/mW with headset off. Powered figure is 108 dB/mW.
Sensitivity reference
Not available
Per 1 mW4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026Page 114 explicitly dB/mW.
THD (claimed)
Not available
Not available
Max input power
Not available
Not available
Max digital audio sample rate
Not available
Not available
Max digital audio bit depth
Not available
Not available
DAC
Not available
Not available
Personalised sound
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 EQ
Not available
Yes16Maker product pagesony.com/electronics/support/wireless-headphones-bluetooth-headphones/wh-ch730n/software/00269130Read 7 October 2026Current Sony Sound Connect support linked to WH-CH730N: no PC app, configured smartphone functions carry over to PC, includes Equalizer. Exact model guide and UK sound page independently confirm its actual EQ. Generic app features vary by model, so only the known-supported EQ inherits this carry-over statement. Stored headset EQ over active Bluetooth without a PC app. Analog/passive EQ operation not established. Other generic app features are not inherited.
Custom EQ bands
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-ch730nRead 5 October 2026Sound section upgraded 10-band custom EQ.
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.
Clear17Reviewwhathifi.com/headphones/sony-wh-ch730nRead 7 October 2026October 2 exact-model hands-on review actually selected Clear in Sony app. Only explicitly identified preset retained. Maker says Game EQ but does not list every named game preset. Do not inherit old Headphones Connect preset names from another headset.
Volume limit
Not available
Not available

Spatial audio

1 of 3 differ
Spatial audio support
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/3006/v1/en/print.pdfRead 5 October 2026About 360 Reality Audio chapter: app/service ear-shape setup for supported content.
Spatial audio licence included
Not available
Not available
Head tracking
Not available
Not available

Noise cancelling

4 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.
Yes6Maker product pagesony.co.uk/headphones/products/wh-ch730nRead 5 October 2026Dual Noise Sensor section.
ANC type
Hybrid1Maker product pageus.nothing.tech/products/cmf-headphone-proRead 8 October 2026The labelled Noise Cancellation Type table states Hybrid ANC.
Hybrid18Maker product pagesony.jp/headphone/products/WH-CH730N/feature_1Read 7 October 2026Exact model Japanese maker noise-cancellation section: two feedforward and two feedback microphones, four total across both sides. Both outside/feedforward and inside/feedback architecture, mapped to hybrid. Call mic count is separate.
ANC microphones
Not available
46Maker product pagesony.co.uk/headphones/products/wh-ch730nRead 5 October 2026Two ANC microphones in each earcup, four total. Call-microphone count is separate and not inferred.
Adaptive ANC
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.
Yes6Maker product pagesony.co.uk/headphones/products/wh-ch730nRead 5 October 2026Dual Noise Sensor section describes detecting habits and automatically adapting noise/ambient settings.
ANC levels
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.
Yes6Maker product pagesony.co.uk/headphones/products/wh-ch730nRead 5 October 2026Same section Ambient Sound Modes.
Adjustable transparency
Not available
Yes6Maker product pagesony.co.uk/headphones/products/wh-ch730nRead 5 October 202620 ambient-control levels are transparency levels, not 20 ANC-strength levels.
Conversation detection
Not available
Not available
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.
Yes6Maker product pagesony.co.uk/headphones/products/wh-ch730nRead 5 October 2026Call section wind-noise reduction for speech and noise-cancelled listening.

Measured

4 of 21 differ
Frequency response notes
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.
Not available
Bass amount
Not available
Not available
Treble amount
Not available
Not available
Deviation from target
Not available
Not available
Consistency between fittings
Not available
Not available
Harmonic distortion
Not available
Not available
Sound leakage
Not available
Not available
Measured noise isolation
Not available
Not available
Noise isolation (measured, best)
Not available
Not available
Passive isolation (measured)
Not available
Not available
Mic quality notes
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.
Lab call recordings show improved speech noise rejection, though it remains imperfect.19Measurementsoundguys.com/sony-wh-ch730n-review-162849Read 7 October 2026Three-day exact WHCH730N/L review. Controlled recordings supplied for ideal, office, street, windy and reverberant conditions. Reviewer explicitly finds decent call speech with improved rejection. Qualitative summary of the lab recordings, not maker marketing or a user poll. No numeric LFE/HFE/SNR, distance or recording level provided.
Mic low-frequency extension
Not available
Not available
Mic high-frequency extension
Not available
Not available
Mic speech-to-noise ratio
Not available
Not available
Measured latency
Not available
Not available
Bluetooth latency (measured, worst)
Not available
Not available
2.4 GHz latency (measured, worst)
Not available
Not available
Measured battery life
ACMF Headphone Pro
ANCHours (h)
Yes43.15
Yes49.5
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-CH730N
Not available
Battery life (measured, max)
49.5h
Not available
Clamping force
Not available
Not available
Weight (measured)
Not available
Not available

Microphone

5 of 16 differ
Microphone
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/3006/v1/en/print.pdfRead 7 October 2026Parts and controls chapter identifies the integrated voice microphone(s).
Microphone element
Not available
Not available
Microphone pickup pattern
Not available
Not available
Voice microphones
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 microphones
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 response
Not available
Not available
Mic sensitivity
Not available
Not available
Mic signal-to-noise
Not available
Not available
Mic sample rate
Not available
Not available
Mic noise reduction
Not available
AI6Maker product pagesony.co.uk/headphones/products/wh-ch730nRead 5 October 2026Call section explicitly Deep Neural Network AI speech processing.
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 indicator
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/3006/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 windscreen
Not available
Not available

Connectivity

7 of 20 differ
Audio connections
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/3006/v1/en/print.pdfRead 5 October 2026Guide Bluetooth setup chapters and page 71 supplied analog headphone cable. USB is charging only, USB audio not claimed.
Analog source plugs
Not available
3.5 mm TRS5Maker product pagesony.jp/headphone/products/WH-CH730N/specRead 5 October 2026Gold-plated L-shaped stereo mini plug, audio-only TRS. Manual cable call path uses phone mic.
Cable connector on headset
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/3006/v1/en/print.pdfRead 5 October 2026Page 71 headphone input jack and stereo-mini connection diagram.
Longest included cable
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.jp/headphone/products/WH-CH730N/specRead 5 October 2026Published approximately 1.2 m detachable headphone cable. Regional charging cable not counted.
Headset USB plug or port
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/3006/v1/en/print.pdfRead 7 October 2026Parts and controls labels USB Type-C charging port.
Audio over USB-C cable
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.
No12Reviewsoundguys.com/sony-wh-ch730n-review-162849Read 7 October 2026Exact WH-CH730N connection section explicitly excludes USB-C playback. USB-C is charging, while supplied TRS cable supports analog. No USB audio path inferred from connector presence.
Passive wired listening
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/3006/v1/en/print.pdfRead 5 October 2026Page 71 explicitly music playback when headset off. Built-in voice mic does not work through supplied cable, phone microphone used for calls.
Wireless receiver
Not available
Not available
Wireless receiver connector
Not available
Not available
Wireless range (claimed)
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/3006/v1/en/print.pdfRead 7 October 2026Printed page 100 Precautions. Approximate claimed Bluetooth range, subject to obstacles and electromagnetic environment. Not a measured range or connection guarantee.
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.jp/headphone/products/WH-CH730N/specRead 5 October 2026Exact model specification table explicitly Bluetooth Version 6.0. This does not establish LE Audio or Auracast support by itself.
Bluetooth codecs
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, LC31Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Supported Codecs chapter gives the exact supported list. LC3 requires compatible LE Audio host and app connection setting, distinct from Classic Audio SBC/AAC.
LE Audio
Not available
Yes4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026LE Audio pairing chapter and Supported Codecs chapter explicitly LC3 playback. Compatible host required.
Auracast
Not available
Yes7Maker product pagesony.co.uk/headphones/products/wh-ch730n/feature-5Read 5 October 2026Next-generation Bluetooth audio section explicitly public broadcasts with Auracast. Compatible source/host required.
Bluetooth multipoint
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/3006/v1/en/print.pdfRead 7 October 2026Connecting to 2 devices chapter, page 66. Audio streams switch, not mix.
Multipoint devices
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/3006/v1/en/print.pdfRead 7 October 2026Same chapter page 66 explicitly two devices simultaneously.
Paired devices remembered
Not available
81Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Android pairing page 37: up to eight devices remembered, oldest registration replaced.
Mixes 2.4 GHz and Bluetooth audio
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 Pair, Microsoft Swift Pair7Maker product pagesony.co.uk/headphones/products/wh-ch730n/feature-5Read 5 October 2026Dedicated Fast Pair Android and Swift Pair Windows 11 sections.
Base station
Not available
Not available

Latency

1 of 2 differ
Low latency mode
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.
Yes4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026App page 7 explicitly selectable Low latency for LE Audio. This is a distinct app setting, not a codec-latency guess.
Claimed latency
ACMF Headphone Pro
ConnectionModeLatency (ms)
BluetoothGame Mode on Nothing Phone120
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-CH730N
Not available

Compatibility

1 of 3 differ
Compatible platforms
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/3006/v1/en/print.pdfRead 7 October 2026Individual Bluetooth chapters explicitly name Android, iPhone, Windows and Mac. No console path inferred.
Connection per platform
ACMF Headphone Pro
PlatformConnectionMicrophone works
AndroidBluetoothYes
iOSBluetoothYes
WindowsBluetoothNot available
macOSAnalogNo
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-CH730N
PlatformConnectionMicrophone works
AndroidBluetoothYes
iOSBluetoothYes
WindowsBluetoothYes
macOSBluetoothYes
Source1Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Exact Android/iPhone/Windows 11/Mac pairing chapters, music and call chapters. Printed page 91 computer video-call settings explicitly selects headset speaker and microphone, links Windows and Mac connection chapters. HFP/HSP host/application support required for classic Bluetooth calls. No console/Linux/SteamOS/analog-platform path guessed. LC3/LE host support separately qualified.
Official licence
Not available
Not available

Battery and charging

8 of 13 differ
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.
Not available
Swappable battery
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 included
Not available
Not available
Claimed battery life
ACMF Headphone Pro
ConnectionANCCodecHours (h)
BluetoothNoAAC100
BluetoothYesAAC50
BluetoothNoLDAC70
BluetoothYesLDAC38
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-CH730N
ConnectionANCHours (h)
BluetoothYes50
BluetoothNo75
AnalogYes35
AnalogNo40
Source1Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Printed guide 27 Available Operating Time separately lists AAC/SBC Bluetooth music 50 h ANC on / 75 h ANC and ambient off, and Headphone cable connected with power on 35 h ANC on / 40 h off. Identical 35/40 h Bluetooth communication table is separate and not stored. LC3 45/70 h music omitted because no codec column. EQ/DSEE/additional functions shorten maxima.
Battery life (claimed, max)
100h
75h
Battery life with ANC (claimed)
50h
50h
Battery life without ANC (claimed)
100h
75h
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/3006/v1/en/print.pdfRead 7 October 2026Charging chapter: USB Type-C cable to the charging port.
Full charge time
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/3006/v1/en/print.pdfRead 7 October 2026Charging page 24: approximately 3 h, explicitly defined as empty battery to full capacity. Converted to 180 min.
Quick charge time
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/3006/v1/en/print.pdfRead 7 October 2026Available Operating Time page 27: 3 minutes charging.
Quick charge playback
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/3006/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

3 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.
Buttons4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026Pages 13-15 parts list: power, NC/AMB and volume/playback/call buttons.
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.
Buttons4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026Page 22 volume up/down buttons. Analog-source controls are handled on source device.
Game and chat mix
Not available
Not available
Remappable controls
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/3006/v1/en/print.pdfRead 5 October 2026App pages 7-8 and Quick Access chapter: reassign NC/AMB button to app-service shortcut. Services vary by region.
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.
No21Reviewthewalkmanblog.com/2026/09/05/sony-wh-ch730n-review/2Read 7 October 2026Exact retail unit reviewer explicitly checked this feature. Generic Sound Connect app list Pause when removed is model-dependent and not inherited. Voice assistant activation is not wear detection.
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 Gemini, Google app, Siri4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026Google Gemini integration chapter plus Google app and Siri chapters pages 96-99. Google/Siri operated by held play/call button, no Hey Siri. Mainland-only Tencent Xiaowei excluded from European reference.

Comfort and build

6 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.
Padded12Reviewsoundguys.com/sony-wh-ch730n-review-162849Read 7 October 2026Physical band padding explicitly identified, corroborated by What Hi-Fi well-padded headband and WalkmanBlog thicker headband cushion. Not a suspension strap.
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.
Metal skeleton12Reviewsoundguys.com/sony-wh-ch730n-review-162849Read 7 October 2026Headband internal structural material only. Cushion covering material not identified. Does not claim the entire external headband is exposed metal.
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.
Mostly matte plastic with a metal headband skeleton12Reviewsoundguys.com/sony-wh-ch730n-review-162849Read 7 October 2026Published mixed construction. Not an assertion of a pure-metal frame or precise metal alloy. Maker confirms some recycled body materials without identifying each part.
Ear cup material
Not available
Not available
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.
Imitation leather20Retailer pagecoolblue.de/en/product/985573/sony-wh-ch730n-black.htmlRead 7 October 2026Exact WHCH730NB.CE7 retailer specification, with matching Blue CE7 listing corroborating same cushion covering. Covering material, not foam chemistry. Maker family comfort page only describes thermo-foamed wrinkle-free cushions, so no polyurethane grade or memory-foam composition inferred.
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.
Yes1Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Printed pages 15 to 16 provides removal and reattachment instructions. Consumables section page 101 discusses deteriorated pads. Independent SoundGuys and WalkmanBlog explicitly discuss removing and replacing pads, no sealed-pad inference.
Ear pad attachment
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.
Stretch-over1Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Printed page 15 insertion of flexible pad rim into unit grooves, with alignment notches. SoundGuys explicitly says slot-plus-extra pad material instead of snap-in, WalkmanBlog says pads slide on/off a lip. Mapped to stretch-over, not clips or magnets.
Ear pad opening
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, Battery assembly, Headphone cable22Owner's manualsony.com/electronics/support/res/manuals/5075/9ebcdf85a4f106789f2247bf73770af2/50750455M.pdfRead 7 October 2026European/UK reference guide page 1 expressly gives battery replacement steps with a Phillips screwdriver and replacement of protective enclosure together with battery. Self-repair, not normal-use hot swap. Ear pads are removable/reattachable in model help guide. Detachable headphone cable replaceability explicitly supported by SoundGuys and exact guide connector procedure. Use manufacturer-compatible battery assembly, availability period not asserted.

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/3006/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/3006/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/3006/v1/en/print.pdfRead 7 October 2026App chapter lists Update Software and dedicated firmware-update chapter.

Dimensions and weight

1 of 2 differ
Headset weight
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.
207g(7.3 oz)1Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Specifications chapter: approximate 207 g. Detachable cable inclusion is not stated.
Headset dimensions
Not available
Not available

Certifications

2 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.
Not available
Communication certifications
Not available
Not available
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.
AK8YY300623Regulatory filingfccid.io/AK8YY3006Read 7 October 2026Official FCC grant mirror, Sony Group Corporation, April 22 2026. Exact YY3006-to-CH730N identity supplied by maker reference-guide cover. Only public grant/label metadata read. Internal photos embargoed until October 20 2026 were not downloaded or used.
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 Audio Certified24Maker product pagesony.co.uk/headphones/products/wh-ch730n/feature-3Read 7 October 2026Exact model Sound Quality section. Certification for personalised ear-shape spatial audio. Supported streaming app/subscription required. Does not imply a bundled paid streaming or spatial licence, and not Hi-Res Audio certification.

In the box

3 of 3 differ
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, Documents4Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 5 October 2026Page 12: headset, headphone cable and documents. USB-C to USB-C charging cable is conditional by model/country, so not inherited into European base. Hello Kitty pouch bundle excluded.
Cables included
ACMF Headphone Pro
TypeLength (m)Count
3.5 mm to 3.5 mm audio cable1.21
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-CH730N
TypeLength (m)Count
Headphone cable1.21
Source5Maker product pagesony.jp/headphone/products/WH-CH730N/specRead 5 October 2026One headphone cable per guide page 12, approximate maker length 1.2 m from exact JP spec.
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.
None1Owner's manualhelpguide.sony.net/mdr/3006/v1/en/print.pdfRead 7 October 2026Printed page 12 full standard box contents excludes a carrying case. European retail WalkmanBlog explicitly says no travel case supplied and no case mentioned in reference guide. Sony x Hello Kitty pouch/tote collaboration is a separate limited bundle, not inherited.

Warranty

0 of 1 differ
Manufacturer warranty (source market)
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.
1year14Maker product pageservices.sony.co.uk/support/en/warranty/generalRead 7 October 2026UK manufacturer European guarantee terms, from original purchase. Two years applies to Xperia and is not borrowed. Statutory rights and registration-based selected-model extensions are separate. Web attempt 403 but ordinary direct curl 200 retrieved full current guarantee. Exact headset UK support links Repair/Warranty service.

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