CMF By Nothing Buds 2 B179 Bluetooth Earbuds

11 mm PMI Driver with Dirac Opteo™
48 dB Hybrid ANC with Environmental Adaptive technology
6 HD microphones with Clear Voice Technology 3.0
Up to 13.5 hours of non-stop music on a single charge
Spatial Audio Effect for immersive sound

Tune into clarity
An everyday companion that’s as dynamic as you are. CMF Buds 2 are crafted for powerful, high-fidelity audio with 48dB Hybrid ANC, Dirac™-tuned sound, and all-day battery life.

Engineered for exceptional sound
Precision meets power. The 11 mm PMI driver provides deep bass and clear treble, while Dirac Opteo™ tuning ensures crystal-clear vocals and precise instrument separation. Ultra Bass Technology 2.0 deepens low frequencies, with N52 magnets and high-purity copper wire enhancing overall sound clarity and power.

Cut out distractions
Silence when you need it. CMF Buds 2 packs 48 dB Hybrid Active Noise Cancellation¹, blocking out a broader range of unwanted sounds with a 5200 Hz ultra-wide frequency range. Environmental Adaptive mode works in real time, adjusting noise reduction levels to suit your surroundings.

Step inside the sound
CMF Buds 2 brings Spatial Audio Effect powered by an HRTF-based algorithm, creating a cinema-grade listening experience. Whether you're locked into a film, deep in the game, or lost in your playlist, feel every detail.

environment
CMF Buds 2 uses 6 HD microphones with AI-powered Clear Voice Technology 3.0 to keep every call clear and natural. Wind Noise Reduction 3.0 ensures conversations stay crisp, free from unwanted interference.

Power through your playlist
Up to 13.5 hours of listening on a single charge.

55 hours total with the case. A quick 10-minute top-up gets you 7.5 hours of playback. No interruptions, just more of what you love.

Refined simplicity
A sleek, minimal design with a matte finish and metal accents for added durability. The transparent dial wrap adds a modern edge. Crafted for everyday comfort with an ergonomic earbud shape that stays secure all day⁹.

Ready for anything
With IP55 water and dust resistance, CMF Buds 2 is built to handle more. Whether you're pushing through a workout or caught in the rain, stay focused without worrying.

Unlock more with the Nothing Xapp
Adjust EQ, Ultra Bass, and ANC settings with the Nothing X app® Enable Low Lag Mode for gaming, and call up ChatGPT for smarter voice interactions. Integrates seamlessly with all Nothing devices.

Built to last
100 times 1-metre drop test
5,000 times Plug & unplug tests for the charging port
2,000 times Stability tests for the charging port
-40°C to 75°C 96 hours of temperature tests
10,000 times Switch tests for the charging case
65°C / 95% humidity 96 hours of high-temperature and humidity tests
10,000 times Case button press tests
IP55 Water resistance rating
Water flow 12.5 L/min
360° water spray for 3 minutes

Spec.
Size
Earbud：33.4 x 20.6 x 22.8 mm
Charging case：53.3 x 53.3 x 23 mm

Weight
Earbud：4.5 g
Charging case：41.5 g
Earbuds and charging case：50.5 g

Sound
Driver：Custom 11 mm dynamic
Diaphragm：PMI (Polymethacrylimide) + PU (Polyurethane)
Audio codec：AAC, SBC

Features
Dirac Opteo™
Spatial Audio Effect
Ultra Bass Technology
Custom EQ
Tuning by Nothing and Dirac™

Noise cancellation
Depth：Up to 48 dB
Frequency range：5200 Hz
Transparency Mode：Supported

Features
Environmental
Adaptive ANC
Transparency Mode

Call functions
Microphone：6 in total
Environmental noise-cancelling algorithm for calls：Clear Voice Technology 3.0
Noise Reduction：Wind Noise Reduction 3.0

Battery
Battery capacity
Buds：53 mAh
Case：460 mAh

Battery life (AAC)
Playback with ANC off：55 hours with case and 13.5 hours with buds only
Playback with ANC on / Transparency Mode：32 hours with case and 7.5 hours with buds only

Talk time
Talk time with ANC off：35 hours with case and 8.5 hours with buds only
Talk time with ANC on / Transparency Mode：30 hours with case and 7 hours with buds only

Fast charge
ANC off：10 min charge for 4 hours with buds only and 7.5 hours with case
ANC on：10 min charge for 2.4 hours with buds only and 4 hours with case

Charging time
Full charge with type-C wire (charging case and earbuds)：93 mins for a full charge
Full charge with charging case：62 mins for a full charge

Connectivity
Connection range：10 m
Bluetooth version：Bluetooth 5.4
Dual Connection：Yes

Compatibility
Android 6.0 and above
iOS 13 and above

Water & Dust resistance
IP55 buds / IPX2 case

Fast pair
Google Fast Pair
Microsoft Swift Pair

Other features
In-ear detection
LED charging status
Low lag mode
With Nothing Phone less than 110 ms under Game Mode
Find my earbuds

Touch controls
Double tap
Skip forward, answer/hang up calls

Triple tap
Skip back, reject calls

Tap & hold
Switch between Active Noise Cancellation and Transparency Mode
More options in the Nothing X app

In the box
Earbud × 2
Charging case × 1
Ear tips in size S, M, L
User Guide × 1