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CMF by Nothing

CMF by Nothing Buds 2

Name: CMF by Nothing Buds 2
Brand: CMF by Nothing
SKU: B0F3D2FTSD
Price: 59.00 USD

Current price · Amazon US

$59

Check Price on Amazon

Price last checked 23h ago

noise cancelling & sound

8.3/ 10

ANCNoise cancelling

8.3

0.010.0

At 8.3, its noise cancelling beats 76% of wireless earbuds we've measured.

Measured on 92 of the 264 we've cataloged.

4.8/ 5

SoundMDAQS Overall

4.8

1.05.0

A 4.8 puts its audio quality in the top half of wireless earbuds we've measured.

Measured on 63 of the 264 we've cataloged.

See the lab data ↓Frequency response · Isolation · Noise cancelling · Audio quality

Key specs

Battery Life Earbuds

9 hAbove average

9 h

3 h15 h

above average for wireless earbuds — based on 247 of 264 we've cataloged.

Battery Life With Case

55 hAbove average

55 h

7 h60 h

above average for wireless earbuds — based on 245 of 264 we've cataloged.

IP Rating

IP55

IPX435%IP5516%IP5415%IPX512%

IP55 appears on 16% of the 244 wireless earbuds we've cataloged (of 264).

Live translation

NoneMost common

None55%Platform ai32%In-app14%

None is the most common — on 55% of the 22 wireless earbuds we've cataloged (of 264).

Battery

Battery Life Earbuds: 9 h
Battery Life With Case: 55 h
Charging Method: USB-C
Full Charge Minutes: 10 min
Battery Life Anc On: 23 h
Charging Case Capacity: 50 mAh
Earbud Capacity: 50 mAh
Fast Charging: Yes

Build

IP Rating: IP55
Sweat Resistance: Yes
Water Resistance: Yes
Material Case: Plastic
Material Chassis Primary: Plastic

Features

Live translation: None
Certified For: Google Fast Pair
Companion App: Yes
Control Type: Touch controls
Eq Customization: Yes
Find My Device: Find My Device (Google)
Gaming Mode: Standard
Auto Connect: Yes
Auto Pause: Yes
Fitness Tracking: No
Mono Mode: Yes
Spatial Audio: Yes
Voice Assistant Support: Google Assistant

Sound

Noise Cancellation Type: Active
Ambient Levels: Variable
Ambient Mode: Standard
Anc Depth: 48 dB
Anc Modes: Off,anc,transparency
Driver Count: 1
Driver Size: 11 mm
Driver Type: Dynamic
Frequency Response: 20-20000 Hz
Frequency Response High Hz: 20000 Hz
Frequency Response Low Hz: 20 Hz
Frequency Response Signature: Balanced
Adaptive Anc: Yes
Impedance: 16 Ω
Passive Isolation: 20 dB

Connectivity

Bluetooth Version: 5.4
Bluetooth Codec: AAC, SBC
Bluetooth Range: 10 m
Connection Type: Bluetooth
Headphone Jack: No
Latency: 110 ms
Multipoint Devices: Yes - 2 devices

Design

Earbud Form Factor: In-ear
Color Options: Orange, dark gray, light gray
Ear Tip Material: Silicone
Ear Tip Sizes Included: S, M, L
Wearing Style: Deep insert
Weight Per Earbud: 4 g
Weight With Case: 41.5 g

Microphone

Count: 6
Wind Noise Reduction: Yes
Noise Reduction Type: AI-powered
Type: Mic array

Release

Date: April 28, 2025
Msrp Usd: 59 USD
Year: 2025

Lab data

How we test ›

Objective measurements from the SoundGuys test lab — overlay other models to see how this one compares.

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0 of 4 overlay slots used

CMF by Nothing Buds 2SoundGuys Headphone Preference Curve

Measured frequency response (dB relative) against the SoundGuys Headphone Preference Curve. When the measurement goes above the dashed line, that frequency is louder than our preference curve, and when it goes below: it's quieter. Use the curve for comparison purposes only, as your taste may vary.

CMF by Nothing Buds 2: frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Response (dB)
20	8.8
25	8.9
32	9.0
40	8.9
50	8.7
63	7.8
80	6.1
100	3.9
125	2.1
160	0.6
200	0.4
250	0.8
315	1.5
400	0.5
500	-0.9
630	-1.0
800	-0.2
1000	0.0
1250	1.2
1600	4.0
2000	7.3
2500	9.6
3150	9.9
4000	7.5
5000	9.4
6300	4.3
8000	5.6
10000	-3.5
12500	6.4
16000	-5.7
20000	-25.0

CMF by Nothing Buds 2

Passive isolation (dB) with ANC off — how much ambient noise the fit blocks on its own. Higher on the chart means more attenuation.

CMF by Nothing Buds 2: passive isolation, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Attenuation (dB)
21	-3.3
26	-0.8
33	1.1
41	1.2
52	0.8
65	1.9
82	2.0
103	2.6
130	2.6
163	1.7
205	3.6
259	5.0
325	6.2
410	8.7
516	6.8
613	7.3
772	10.2
972	11.5
1220	13.6
1540	15.4
1940	20.2
2440	29.6
3070	29.7
3870	24.3
4870	12.9
6130	21.2
7720	37.8
9720	29.9
12200	29.5
15400	35.8
19400	23.6

CMF by Nothing Buds 2

Total attenuation (dB) with ANC on — passive isolation plus active noise cancelling. Higher on the chart means more attenuation.

CMF by Nothing Buds 2: noise cancelling, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Total attenuation (dB)
21	9.4
26	17.5
33	16.8
41	20.8
52	26.0
65	27.2
82	32.2
103	33.2
130	30.8
163	24.9
205	30.6
259	25.4
325	23.1
410	17.2
516	16.3
613	19.5
772	23.7
972	22.7
1220	21.0
1540	24.3
1940	32.1
2440	43.1
3070	38.1
3870	23.6
4870	10.8
6130	24.7
7720	33.2
9720	29.8
12200	23.1
15400	37.9
19400	21.9

SoundGuys review

Read the full review ›

SOUNDGUYS rating

8.0/ 10

Recommended

Reviewed byAdam BirneyManaging EditorReviewed May 2025

Noise cancelling8.3

Isolation6.0

Battery life7.7

Comfort & fit8.5

Connectivity8.0

Design7.0

The verdict

The CMF Buds 2 Plus offers impressive audio performance and innovative personalization features at a budget-friendly price. Still, the puzzling removal of the previous model's standout Smart Dial makes this "upgrade" feel incomplete despite technical improvements.

✓What we like

✓Sound quality

✓ANC

✓Bluetooth 5.4 with LDAC

✓Price

✕What could be better

✕No Smart Dial

✕No wireless charging

Read the full SoundGuys review →