Earbuds / Compare

CMF Buds 2 vs TOZO NC9 (2024 Hybrid ANC)

A

Product A: CMF

Buds 2

87 of 166 known

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B

Product B: TOZO

NC9 (2024 Hybrid ANC)

54 of 166 known

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All 166 fields

Every value links to where we found it.

Only differences

ACMF Buds 2

BTOZO NC9 (2024 Hybrid ANC)

General

6 of 8 differ

Series

Not available

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

Not available

T111241Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Charging case label in the maker's product photo: Model No. T11124. The earbud label reads Model Name NC9.

GTIN / EAN

6974434225053, 6974434225077, 69744342250392Maker product pagecheckout-us.nothing.tech/products/cmf-buds-2.jsRead 15 October 2026Maker store lists the SKU and the barcode with the same value for each colour. All three are valid EAN-13 numbers with prefix 697443. Light Green 6974434225053, Dark Grey 6974434225077, Orange 6974434225039.

6971681319931, 6971681312338, 6971681312352, 69716813123691Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Variant barcodes of the store page. Black and Grey list the same barcode. The Pink, Green and Dusty Blue entries are not valid 13-digit barcodes and are left out.

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

28 April 20254Press articleandroidcentral.com/accessories/earbuds/cmf-buds-2-series-announced-globallyRead 15 October 2026Pre-orders started on 28 April 2025.

Not available

Status

Available1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Available1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026In stock on the TOZO store on 2026-10-15.

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

Not available

Not available

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

Not available

Not available

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

$595Press articletechradar.com/phones/nothing-phones/nothing-reveals-tempting-cmf-phone-2-pro-pricing-and-specs-alongside-bargain-wireless-earbudsRead 15 October 2026Launch report gives $59 for the CMF Buds 2. SoundGuys and GSMArena also give a $59 launch price. A pulled early store listing reportedly showed $59.99. The current store price of $49 is not a launch price.

Not available

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

€49.956Spec databasenextpit.de/in-ear-kopfhoerer/cmf-buds-2Read 15 October 2026German recommended retail price 49.95 EUR including VAT. inside-digital.de gives the same figure. Android Central rounds to 49 EUR. A pre-launch report also names 49.95 EUR.

Not available

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

US, DE6Spec databasenextpit.de/in-ear-kopfhoerer/cmf-buds-2Read 15 October 2026Maker store evidence for the US. nextpit gives May 2025 availability in Germany.

Not available

ColoursiThe maker's own colour names

Light Green, Dark Grey, Orange1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Black, Dark Blue, Matte Red, Pink, Green, Dusty Blue, White, Grey1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Colour picker: Black, Dark Blue, Matte Red, Pink, Green, Dusty Blue, White, Grey.

Segment

Music1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Not available

Design

2 of 4 differ

Form factoriIn-ear seals the ear canal with a tip. Semi-in-ear rests in the outer ear without a seal. Open-ear leaves the ear canal unobstructed.

In-ear1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

In-ear1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Product tags: In-Ear. The photos show a sealed ear tip.

Bud shapeiStem describes an extending control or microphone stalk. Stemless describes a compact body without a stalk.

Stem1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Stemless4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: stemless, round earbuds with a drip shape that points down in the ear.

Use one bud aloneiWhich earbud can operate alone. This does not mean two earbuds can play from different sources.

Not available

Either bud6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 5.2 Wearing One Earbud gives controls for L and R alone. Section 5.4: ANC is not available when using a single earbud. Both earbuds can play alone.

RGB lighting

Not available

Not available

Drivers and sound

8 of 17 differ

Drivers per budiAudio transducers in one earbud. Rows distinguish their type, acoustic role and published diameter. Do not count microphones.

ACMF Buds 2

Type	Diameter (mm)	Count per earbud
Dynamic	11	1

Source1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Custom 11 mm dynamic driver. One per bud. The acoustic role is not published.

BTOZO NC9 (2024 Hybrid ANC)

Type	Diameter (mm)
Dynamic	10

Source2Maker product pagetozostore.com/blogs/news/why-tozo-nc9-is-one-of-the-most-popular-tozo-wireless-earbudsRead 15 October 2026Maker blog post: 10 mm dynamic drivers with OrigX Acoustic 2.0 tuning. The post links to this product. A TOZO spec table and two reviews give 9 mm or 9.2 mm. No driver count or role is stated.

Driver typeiPublished transducer technology. High-excursion, composite and neodymium do not by themselves establish a driver type.

Dynamic1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Dynamic2Maker product pagetozostore.com/blogs/news/why-tozo-nc9-is-one-of-the-most-popular-tozo-wireless-earbudsRead 15 October 2026Maker blog post: 10 mm dynamic drivers.

Driver sizeiLargest explicitly published circular driver diameter in one earbud. A rectangular driver width is not a diameter.

11mm=CalculatedFrom Drivers per bud

10mm=CalculatedFrom Drivers per bud

Drivers per budiTotal audio transducers in one earbud, summed from explicit driver quantities. A row with an unknown quantity makes the total unknown.

1=CalculatedFrom Drivers per bud

Not available

Diaphragm material

PMI (Polymethacrylimide) + PU (Polyurethane)1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Not available

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

Min20 HzMax20 kHz8Spec databasesoundguys.com/product/cmf-by-nothing-buds-2Read 15 October 2026SoundGuys spec list gives 20 to 20000 Hz. Smartprix gives the same range. Neither the maker page nor a document states it and no measurement condition is given.

Not available

Impedance

Not available

Not available

SensitivityiPublished acoustic sensitivity. The electrical reference and frequency must be stated in sensitivity_reference or the source note.

Not available

Not available

Sensitivity reference

Not available

Not available

Max sample rateiHighest supported audio sample rate under the codec and source-device conditions in the source note. This does not establish lossless playback.

Not available

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

Not available

Not available

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

Not available

Not available

Personalised soundiA profile from a hearing test or ear scan

No9Measurementm.gsmarena.com/nothing_cmf_buds_2_review-news-68160.phpRead 15 October 2026Review states the Buds 2 lack the Personal Sound feature of the Plus model.

Not available

Onboard EQ

Not available

Not available

Custom EQ bandsiNumber of independently adjustable custom equalizer frequency bands. Availability may require current firmware, an app or a compatible device.

37Measurementsoundguys.com/cmf-buds-2-review-137571Read 15 October 2026Three-band custom equalizer in the Nothing X app. GSMArena also describes a 3-band circular EQ.

Not available

EQ presetsiNamed equalizer sound presets. Noise-control modes and spatial-audio modes are separate features.

Dirac Opteo, Pop, Rock, Classical, Electronic, Enhance Vocals7Measurementsoundguys.com/cmf-buds-2-review-137571Read 15 October 2026Reviewer lists Dirac Opteo, Pop, Rock, Electronic, Classical and a Vocals preset. Maker app name for the last one is Enhance Vocals per Expert Reviews. Custom is a separate option.

Not available

Volume limit

Not available

Not available

Spatial audio

1 of 2 differ

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

Spatial Audio Effect1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Spatial Audio Effect powered by an HRTF-based algorithm. Head tracking is not mentioned.

Not available

Head trackingiSpatial audio changes with head movement. Static spatial processing alone does not qualify. Compatible device or content requirements belong in the source note.

Not available

Not available

Noise cancelling

2 of 11 differ

Active noise cancelling

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Yes1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Spec headline: Hybrid Active Noise Canceling.

ANC typeiFeedforward uses exterior microphones. Feedback uses interior microphones. Hybrid uses both. Adaptive control is separate from microphone placement.

Hybrid1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Hybrid1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Page diagram: an out-facing microphone detects outside noise and an in-facing microphone listens inside the ear canal. Both are used for cancelling.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 6.1: an outward-facing microphone detects external sounds and anti-noise cancels them, and an inward-facing microphone listens for unwanted internal sounds. That is hybrid.

ANC microphones in both earbudsiPhysical microphones used by ANC across the pair. A shared call and ANC microphone counts once. Case microphones and vibration sensors are excluded.

Not available

Not available

Adaptive ANCiANC strength or calibration adjusts automatically to noise, fit or ear acoustics. The source note states the adjustment conditions.

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Environmental Adaptive mode adjusts noise reduction in real time to the surroundings.

Yes1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Page image caption: ANC Adaptive Hybrid ANC. The adjustment conditions are not stated.

ANC levelsiNumber of selectable ANC strength levels. Excludes ANC off, transparency and activity profiles unless they explicitly set distinct strength levels.

311Reviewfonearena.com/blog/454376/cmf-buds-2-review.html/ampRead 15 October 2026Reviewer lists four noise control modes: Low, Mid, High and Adaptive. Three are fixed strength levels. Adaptive is separate.

Not available

ANC attenuation (claimed)iManufacturer maximum claimed noise attenuation. Frequency and measurement conditions belong in the source note. This is not reviewer-measured overall attenuation.

48dB1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Up to 48 dB. Footnote says this is a theoretical maximum from the Nothing laboratory. Cancellation frequency range is 5200 Hz.

45dB1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026FAQ: noise reduction depth of up to 45 dB. No frequency or test conditions are stated.

Transparency mode

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Yes1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Feature text: Transparency Mode lets you hear ambient sounds.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 6.3 Transparency Mode.

Adjustable transparency

Not available

Not available

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

Not available

Not available

Conversation detection

Not available

Not available

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

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Wind Noise Reduction 3.0 is listed under call functions. It improves microphone clarity on calls.

Yes1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026The app screenshot on the page shows a Reduce Wind Noise setting. This is a selectable setting, not a mesh or shape change.4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: the app offers a wind noise ANC setting.

Measured

4 of 23 differ

Frequency response notes (measured)iMeasured by a reviewer, not claimed by the maker

Default Dirac Opteo preset. About 5 to 9 dB more low-end than the SoundGuys house curve. About 3 to 4 dB under the curve between 3 and 6 kHz.7Measurementsoundguys.com/cmf-buds-2-review-137571Read 15 October 2026Firmware 1.0.128, five days of testing, company-provided unit. SoundGuys house curve. The reviewer also reports ANC attenuation peaking around 35 to 38 dB in some ranges. This is not stored as an overall figure.

Not available

Bass amount (measured)iDeviation from the review source target in the bass range. Positive means more bass. Target, test method and settings belong in the source note.

Not available

Not available

Treble amount (measured)iDeviation from the review source target in the treble range. Positive means more treble. Values from different targets may not be directly comparable.

Not available

Not available

Deviation from target (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Noise isolation, best (measured)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

Call quality notes (measured)iMeasured by a reviewer, not claimed by the maker

SoundGuys describes good clarity and natural tonality in ideal conditions and effective wind noise reduction outdoors. Street conditions work better than a busy office, where ringing phones still come through.7Measurementsoundguys.com/cmf-buds-2-review-137571Read 15 October 2026Reviewer observations from published ideal, office, street, windy and reverberant demos. Firmware 1.0.128.

Not available

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

Not available

Not available

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

Not available

Not available

Mic speech-to-noise ratio (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

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

ACMF Buds 2

ANC	Hours (h)
No	13.28

Source9Measurementm.gsmarena.com/nothing_cmf_buds_2_review-news-68160.phpRead 15 October 2026Reviewer got 13 hours 17 minutes of continuous use with ANC disabled. Volume, firmware and host are not stated. SoundGuys and FoneArena report about 9 hours in their own tests. Tom's Guide estimates about 12 hours. The reviews disagree.

BTOZO NC9 (2024 Hybrid ANC)

Not available

Longest tested use per chargeiHighest earbuds-only duration among stored reviewer tests. Modes and settings may differ between tests and products.

13.28h=CalculatedFrom Battery life (measured)

Not available

Battery life with case (measured)iReviewer-tested total including earbuds and case recharges. Do not calculate this by multiplying one-charge runtime by claimed recharge count.

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Microphones and calls

2 of 7 differ

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

61Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker footnote says 3 HD microphones per bud, 6 in total.

61Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Feature Call Noise Reduction: six-mic ENC noise reduction. FAQ: 6 built-in microphones and ENC ambient noise reduction. All six are named for call noise reduction, so the voice count equals the total. The manual shows a Noise Canceling MIC and a MIC on each earbud.

All microphones in both earbudsiEvery physical microphone across the pair, including call and ANC microphones. Shared microphones count once. Excludes the charging case and voice vibration sensors.

61Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker lists 6 microphones in total. The split between call and ANC use is not published.

61Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026FAQ: 6 built-in microphones. Counted across both earbuds. How they split between ANC and calls is not stated.

Bone conduction voice sensoriA dedicated bone or jaw conduction sensor for detecting speech vibrations. A microphone or speech-detecting accelerometer alone does not prove this architecture.

Not available

Not available

Mic noise reduction

AI1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker text calls Clear Voice Technology 3.0 AI-powered.

DSP1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Feature and FAQ: ENC ambient noise reduction for calls. ENC is a processing feature, so dsp is stored, as on the TOZO T6. No AI processing is claimed.

Call audio bandwidthiHighest supported call-audio bandwidth. Compatible phone, operating system, call app or network requirements belong in the source note.

Not available

Not available

Mic mute controliAn earbud control that mutes the microphone during calls. Includes touch or pressure gestures and physical buttons. Phone/app-only controls do not qualify.

No12Reviewyankodesign.comRead 15 October 2026Reviewer says muting the microphone with a tap gesture is not available.

Not available

SidetoneiHear your own voice in calls

Not available

Not available

Connectivity

6 of 18 differ

Chip

Not available

Not available

Connections

Bluetooth1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Bluetooth1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Bluetooth 5.3 is the only connection named.

Bluetooth

5.41Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

5.31Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Feature text: Bluetooth 5.3.

Bluetooth codecs

AAC, SBC1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

SBC, AAC4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review spec list: Bluetooth 5.3 with AAC codec. SBC comes from the HiFi Report page. The maker states no codecs.5Reviewhifireport.com/tozo-nc9-hybrid-active-noise-cancelling-wireless-earbuds-reviewRead 15 October 2026The page says Bluetooth 5.3 supports the standard SBC and AAC codecs.

Bluetooth profiles

Not available

Not available

LE Audio

Not available

Not available

Auracast

Not available

Not available

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

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Listed as Dual Connection: Yes.

No4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: the NC9 2024 does not support multipoint. Only one device can be connected at a time.

Multipoint devicesiMaximum source devices concurrently connected by Bluetooth, not the number remembered in pairing history.

21Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Dual Connection is two simultaneous source devices.

Not available

Multipoint with LDACiMany buds turn multipoint off on LDAC

Not available

Not available

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

Not available

Not available

Automatic switching between own devicesiThrough the maker's account

Not available

Not available

Fast pairing

Google Fast Pair, Microsoft Swift Pair1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Not available

Audio sharingiShare one stream with a second pair

Not available

Not available

Wireless range (claimed)

10m1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

15m1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026FAQ: stable connection within a 15-meter range. A reviewer measured reliable use to about 10 m.

Wireless receiveri2.4 GHz dongle

Not available

Not available

Receiver connector

Not available

Not available

Simultaneous 2.4 GHz and Bluetooth audioiBoth connection types can play audio together. Quick switching between independent modes does not qualify.

Not available

Not available

Latency

2 of 3 differ

Low latency mode

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Yes1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Feature text: Low-Latency Mode for gaming and video. No latency figure is stated.

Claimed latency

ACMF Buds 2

Connection	Mode	Latency (ms)
Bluetooth	Game Mode with a Nothing phone	110

Source1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Spec table says less than 110 ms with a Nothing phone in Game Mode. Footnote says as low as 110 ms. Stored as 110 ms.

BTOZO NC9 (2024 Hybrid ANC)

Not available

Lowest claimed latency

110ms=CalculatedFrom Claimed latency

Not available

Compatibility

3 of 4 differ

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

Android, iOS1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Not available

Connection per platformiDocumented audio connection for each platform. USB-C phone routes require a compatible port. Platform edition and microphone restrictions belong in source notes or feature requirements.

ACMF Buds 2

Platform	Connection
Android	Bluetooth
iOS	Bluetooth

Source1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

BTOZO NC9 (2024 Hybrid ANC)

Not available

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

ACMF Buds 2

Feature	Needs
Custom controls and advanced settings	Turn on custom controls with a phone. Nothing OS 1.5.6 or later has the settings built in. Other Android 6.0 or later and iOS 13 or later devices use the Nothing X app.
110 ms Game Mode latency	Earbuds paired with a Nothing phone with Game Mode turned on.
Google Fast Pair	Supported Android device with Google Play services 11.7 or later. Android 6.0 or later. Find My and device renaming need Android 10 or later.
Clear Voice Technology 3.0	Applies only when the microphones record voice, such as on a call or a voice message.

Source1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

BTOZO NC9 (2024 Hybrid ANC)

Not available

Official licence

Not available

Not available

Battery and charging

12 of 13 differ

Battery per budiBattery cell capacity of one earbud. The source note states typical or rated capacity. Charging input current is not capacity.

53mAh1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Earbud capacity 53 mAh. Typical versus rated is not stated.

55mAh1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Earbud label in the maker's product photo: 55 mAh 3.7 V, rated.

User-replaceable earbud batteryiThe maker documents normal battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

Not available

Claimed battery lifeiManufacturer maximum runtime under the stated mode, codec and spatial processing state. Name the spatial or immersive processing mode and other conditions in source notes. Omit unspecified settings. with_case false means one charge of the earbuds. true means earbuds plus case recharges.

ACMF Buds 2

Mode	Codec	Includes case recharges	Hours (h)
ANC off	AAC	No	13.5
ANC off	AAC	Yes	55
ANC on	Not available	No	7.5
ANC on	Not available	Yes	32
Call	Not available	No	8.5
Call	Not available	Yes	35
Call	Not available	No	7
Call	Not available	Yes	30

Source1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker playback and talk time tables. Lab test at 25 C. The 55 hour footnote states ANC off, 50% volume, AAC and other settings at default. The ANC on and call rows state no codec. Call rows 8.5 and 35 hours are ANC off. Call rows 7 and 30 hours are ANC on. The call mode cannot encode ANC, so these conditions stay here. Case totals include the initial earbud charge.

BTOZO NC9 (2024 Hybrid ANC)

Mode	Includes case recharges	Hours (h)
ANC off	No	14
ANC on	No	10
ANC off	Yes	59
ANC on	Yes	42

Source1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026FAQ: up to 14 h per charge with ANC off and 10 h with ANC on. The case gives up to 59 h with ANC off and 42 h with ANC on. The page headline says 60 hours, the badge says 59 hours and one image says 60 h and 40 h. The FAQ pair was used. No codec or volume is stated.

Longest claimed use per chargeiHighest earbuds-only runtime among all stored modes. This can be ANC off, Hearing Aid, heart-rate or call use. Read the battery table and source conditions.

13.5h=CalculatedFrom Claimed battery life

14h=CalculatedFrom Claimed battery life

Playback per charge with ANC (claimed)iHighest claimed earbuds-only playback with ANC enabled. Codec and spatial-audio conditions belong in the source note.

7.5h=CalculatedFrom Claimed battery life

10h=CalculatedFrom Claimed battery life

Playback per charge without ANC (claimed)iHighest claimed earbuds-only playback with ANC disabled. Codec and volume conditions belong in the source note.

13.5h=CalculatedFrom Claimed battery life

14h=CalculatedFrom Claimed battery life

Total with case (claimed)iHighest claimed runtime including the initial earbud charge and all case recharges. It is not the case recharge runtime alone.

55h=CalculatedFrom Claimed battery life

59h=CalculatedFrom Claimed battery life

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

32h=CalculatedFrom Claimed battery life

42h=CalculatedFrom Claimed battery life

Talk time (claimed)

8.5h=CalculatedFrom Claimed battery life

Not available

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

62min1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker table row Earbuds in Case, 62 minutes.

Not available

Charging guidanceiPublished charging guidance or estimates that do not separate earbuds and case. Preserve the maker’s component scope and limits. Do not assign an unspecified or combined estimate to a component-specific numeric field.

The maker charging time table lists Full Charge 93 minutes and Earbuds in Case 62 minutes. It does not say whether the earbuds sit inside the case for the 93 minute figure. A 5 V 1 A adapter or higher is needed for fast charging.1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

The manual says the power delivered by the charger must be between 2.5 W and 5.0 W to reach the maximum charging speed.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Last page: the power delivered by the charger must be between min 2.5 W required by the radio equipment and max 5.0 W to achieve the maximum charging speed.

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

10min1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker Fast charging row for the Type-C cable states a 10 minute charge. The row label says Full charge, but the marketing text and the GSMArena test both describe a 10 minute charge.

Not available

Earbud playback after quick chargeiEarbuds-only runtime after quick_charge_min of charging. A claimed case-inclusive total does not qualify. ANC, codec and volume conditions belong in the source note.

4h1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Earbuds-only 4 hours after a 10 minute wired charge. Playback with the case is 7.5 hours and is excluded. Charging from an unplugged case for 10 minutes gives 2.4 hours earbuds-only and 4 hours with the case. ANC, codec and volume are not stated for this claim.

Not available

Charging case

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Case batteryiCharging-case battery cell capacity. The source note distinguishes typical, rated and output capacity. USB output capacity alone does not qualify.

460mAh1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Case capacity 460 mAh. Typical versus rated is not stated.

500mAh1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Charging case label in the maker's product photo: 500 mAh 3.7 V, rated.

User-replaceable case batteryiThe maker documents normal case battery replacement by the user with its approved procedure and tools. Service or recycling disassembly does not count.

Not available

Not available

Case charging port

USB-C1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

USB-C4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: the case charges by USB-C. The case photo on the maker page shows a USB-C port.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 1.0: USB C port on the charging case, next to a Reset button.

Case full charge timeiBy cable, 0 to 100 %. A time the maker gives with the earbuds inside the case counts, and the source note says so.

Not available

120min5Reviewhifireport.com/tozo-nc9-hybrid-active-noise-cancelling-wireless-earbuds-reviewRead 15 October 2026Spec row: about 2 hours for a full case charge, by cable. The maker states no case charge time.

Wireless charging

No7Measurementsoundguys.com/cmf-buds-2-review-137571Read 15 October 2026Review says there is no wireless charging support. The maker lists none.

Not available

Wireless standardsiDocumented case charging standards or supported chargers. Magnetic alignment alone does not establish Qi2 certification.

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Screen on case

Not available

Yes1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Page highlights: LED Digital Display and an HD display on the case. The display shows the battery percentage.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Sections 1.0 and 7.1: Display Screen on the case shows the battery level of the case and both earbuds.

Case works as audio transmitteriCase relays external source audio through USB or an analog audio input. A case microphone for recording or calls does not qualify.

Not available

Not available

Controls

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

Touch1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Touch4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: the sides of the earbuds are touch panels.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Sections 5.1 to 5.6 describe touch areas L and R. The charging case has a Reset button for resets.

Earbud volume controliHow earbud controls adjust volume, including a voice command if supported. Phone or app controls alone do not qualify.

Touch1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Footnote lists volume up and volume down as assignable touch functions.

Touch4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: holding the earbuds changes the volume.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 5.1: hold L to lower and hold R to raise the volume while music plays.

Gestures

Double tap, Triple tap, Tap and hold, Double tap and hold1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Footnote lists double tap, triple tap, tap and hold, and double tap and hold as assignable. Defaults are in the touch controls table.

Tap right earbud: play or pause, Double-tap left earbud: previous song, Double-tap right earbud: next song, Hold left earbud: volume down, Hold right earbud: volume up, Tap left earbud: switch between transparency mode and ANC mode, Triple-tap left earbud: normal mode, Triple-tap right earbud: voice assistant, Tap either earbud when worn alone: play or pause, Triple-tap either earbud when worn alone: voice assistant, Tap either earbud on an incoming call: answer, Hold either earbud for 2 seconds on an incoming call: reject, Hold either earbud for 2 seconds while dialing: cancel the call4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Reviewer description of the default controls. The manual gives the left and right split and is used for the stored list.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Sections 5.1 to 5.5, wording shortened. Both earbuds: tap R play or pause, double-tap L or R previous or next, hold L or R volume down or up, tap L switches transparency and ANC, triple-tap L normal mode, triple-tap R voice assistant. One earbud: tap L or R play or pause, triple-tap L or R voice assistant. Calls: tap L or R answers, hold 2 s rejects or cancels.

Remappable controls

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Yes4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: about half of the controls can be changed in the app.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 8.0 TOZO App: most of the controls can be customized in the app.

Voice assistant

Voice assistant1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Footnote lists voice assistant as an assignable function. No particular assistant brand is named in the specs.

Phone voice assistant6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 5.5: triple-tap wakes up the voice assistant. No assistant is named, so it is the phone own assistant.

Sensors and health

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In-ear detection

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Listed as In-ear detection.

Not available

Sensors

Not available

Not available

Heart rate sensor

Not available

Not available

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

Not available

Not available

Hearing aid featureiAmplification for mild to moderate hearing loss

Not available

Not available

Medical clearances

Not available

Not available

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

No9Measurementm.gsmarena.com/nothing_cmf_buds_2_review-news-68160.phpRead 15 October 2026Personal Sound plays tones for a hearing based profile. The review says the Buds 2 do not have it.

Not available

Hearing protectioniLimits sudden loud sounds

Not available

Not available

Health features

Not available

Not available

Fit and durability

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

S, M, L1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026In-the-box list names S, M and L tips.

XXS, XS, S, M, L, XL1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026FAQ: six sizes of replaceable ear tips. The manual package diagram names the six sizes. Scarbir received 3 sets of ear tips, so the retail packs may differ.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 1.0 package diagram: XXS, XS, S, M, L and XL ear tips. M is pre-installed.

Ear tip materials

Silicone10Reviewexpertreviews.co.uk/technology/headphones-audio/cmf-buds-2-reviewRead 15 October 2026Review says the box holds silicone ear tips in several sizes. SoundGuys also says silicone.

Not available

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

Not available

Not available

Ear tip fit test

Yes11Reviewfonearena.com/blog/454376/cmf-buds-2-review.html/ampRead 15 October 2026The Nothing X app has an earbuds fit test that plays music to check the seal.

Not available

Dust and water rating, buds

IP551Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Earbuds tested to IP55 under IEC 60529 per footnote.

IPX81Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Feature text: IPX8 water resistance for the earbuds.

Dust and water rating, case

IPX21Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Spec list shows IPX2 for the case. Footnote says the case is not rated for water-proofing.

Not available

Water resistance depth

Not available

Not available

Software

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Companion app

Nothing X1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

TOZO app1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Feature text: TOZO app with 32 preset EQs. A feature image also says TOZO Headphones app.

App platforms

Android, iOS1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

iOS, Android4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: the Tozo app for iPhone and Android.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 9.0 shows App Store and Google Play badges.

User firmware updates

Yes1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Nothing X app lists software updates.

Yes4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: the app can update firmware.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 8.0: the earbuds firmware can be updated in the app.

Finding network

Not available

Not available

Precision findingiUWB in the case

Not available

Not available

Live translation

Not available

Yes4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: the app records and translates spoken sentences with the earbud or phone microphone. This is not a streaming interpreter.

Dimensions and weight

4 of 4 differ

Weight per budiMass of one earbud. Tip size and approximate values belong in the source note. Do not store pair or case-inclusive mass.

4.5g(0.2 oz)1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Not available

Bud dimensionsiDimensions of one earbud on the explicitly identified width, height and depth axes. An unlabeled tuple cannot establish those axes.

Width20.6Height33.4Depth22.8mm(0.8 × 1.3 × 0.9 in)1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker lists Height 33.4 mm, Width 20.6 mm, Depth 22.8 mm for the buds.

Not available

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

41.5g(1.5 oz)1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker case weight 41.5 g. The buds are not included in this figure.

Not available

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

Width53.3Height53.3Depth23mm(2.1 × 2.1 × 0.9 in)1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Maker lists Height 53.3 mm, Width 53.3 mm, Depth 23 mm for the case.

Not available

Certifications

1 of 3 differ

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

Not available

Not available

Communication certifications

Not available

Not available

FCC IDs

Not available

2ASWH-T111247Regulatory filingfccid.io/2ASWH-T11124Read 21 October 2026FCC grant 2ASWH-T11124, Wireless Earbuds, Shenzhen Worgo Technology Limited (TOZO), models T11124 and T11141, granted 2026-05-26. Its user manual is the TOZO NC9 manual. Grants 2ASWH-T11124E and 2ASWH-T11124C also name model T11124, but their manuals are for the TOZO NC9 Pro, so they are not stored.

Other certifications

EU RoHS, REACH1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026Footnote states restricted substance tests including EU RoHS and REACH, plus skin irritation and sensitivity tests.

Not available

In the box

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In the box

Pair of earbuds, Charging case, Ear tips in size S, M, L, User guide, Safety information and warranty information1Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

Earbuds with M-size ear tips pre-installed, Charging case, USB-C cable, Extra ear tips, User manual, Quick guide4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: 3 sets of ear tips, USB-C cable, English manual. The stored list follows the maker manual.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 1.0: the package contains the NC9 earbuds preinstalled with M-size ear tips, a charging case, a USB-C cable, extra ear tips and instructions. The diagram shows a User Manual and a Quick Guide.

Cables included

ACMF Buds 2

Not available

BTOZO NC9 (2024 Hybrid ANC)

Type	Count
USB-C	1

Source4Reviewscarbir.com/tws/tozo-nc9-2024-reviewRead 15 October 2026Review: USB-C cable. The other end is not stated.6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026Section 1.0 diagram shows one USB-C cable with a USB-A plug. No length is given.

Links

Not compared

Product page

us.nothing.tech/products/cmf-buds-21Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026

www.tozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbuds1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026TOZO official store page, titled TOZO NC9 Upgraded Wireless Earbuds. The URL slug says 2024-hybrid-active-noise-cancelling-wireless-earbuds. TOZO also sells an older NC9 (40 h, IPX6, wireless charging) on a different page. That model is not this one.

Spec sheet

us.nothing.tech/products/cmf-buds-21Maker product pageus.nothing.tech/products/cmf-buds-2Read 15 October 2026The public product page embeds the full Technical Specs tables. The same tables appear on the India page. Selected reference is the US store listing.

Not available

Manual

Not available

fccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdf6Owner's manualfccid.io/2ASWH-T11124/User-Manual/User-manual-9328213.pdfRead 21 October 2026TOZO NC9 user manual, a copy filed with the FCC by Shenzhen Worgo Technology Limited (TOZO) under FCC ID 2ASWH-T11124. The cover says Model No.: T11124, which is the NC9 case label model. No manual PDF was found on the maker site.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

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

1year3Maker product pageus.nothing.tech/pages/terms-of-salesRead 15 October 2026US direct-store limited warranty for headphones and other electronic devices is twelve months from delivery. It applies to the US store, not worldwide.

1.5years1Maker product pagetozostore.com/products/2024-hybrid-active-noise-cancelling-wireless-earbudsRead 15 October 2026Store banner: 12+6 months hassle-free warranty. Stored as 1.5 years for the TOZO US store.

Both are also in the API. Back to all earbuds.