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CMF by Nothing

CMF by Nothing Buds (1st gen)

Name: CMF by Nothing Buds (1st gen)
Brand: CMF by Nothing
SKU: B0CYWXN3D5
Price: 39.99 USD

Current price · Amazon US

$39.99

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Price last checked 1d ago

Noise Isolation / ANC & sound

5.8/ 10

5.8

0.010.0

A 5.8 puts its noise isolation / ANC in the top half of wireless earbuds we've measured.

Measured on 133 of the 271 we've cataloged.

4.5/ 5

SoundMDAQS Overall

4.5

1.05.0

A 4.5 puts its audio quality in the bottom third of wireless earbuds we've measured.

Measured on 64 of the 271 we've cataloged.

Key specs

Battery Life Earbuds

8 hAbove average

8 h

3 h16 h

above average for wireless earbuds — based on 243 of 271 we've cataloged.

Battery Life With Case

35.5 hAbove average

35.5 h

7 h60 h

above average for wireless earbuds — based on 245 of 271 we've cataloged.

IP Rating

IP54

IPX433%IP5516%IP5415%IPX512%

IP54 appears on 15% of the 244 wireless earbuds we've cataloged (of 271).

Noise Cancellation Type

ActiveMost common

Active61%Passive14%None9%Adaptive8%

Active is the most common — on 61% of the 172 wireless earbuds we've cataloged (of 271).

Battery

Battery Life Earbuds: 8 h
Battery Life With Case: 35.5 h
Full Charge Minutes: 10 min
Earbud Capacity: 45 mAh
Fast Charging: Yes

Build

IP Rating: IP54
Water Resistance: Yes

Sound

Noise Cancellation Type: Active
Anc Depth: 42 dB
Driver Size: 12.4 mm
Driver Type: Dynamic
Impedance: 32 Ω

Connectivity

Bluetooth Version: 5.3
Connection Type: Bluetooth
Multipoint Devices: 2 devices

Design

Color Options: Dark gray, light gray, orange
Weight Per Earbud: 4 g

Features

Companion App: IOS + Android
Control Type: Touch controls
Auto Pause: Yes
Mono Mode: Yes

Microphone

Count: 4

SoundGuys review

Read the full review ›

SOUNDGUYS rating

7.7/ 10

Recommended

Reviewed byAdam BirneyManaging EditorReviewed August 2024

Noise cancelling7.4

Isolation5.8

Battery life6.5

Comfort & fit7.5

Connectivity5.0

Design7.2

The verdict

The CMF Buds by Nothing deliver surprisingly good ANC for the price, but suffer from too much bass emphasis. They offer decent features and performance, making them average, basic everyday buds for budget-conscious consumers.

✓What we like

✓Price

✓ANC

✓Call quality

✕What could be better

✕Bass-heavy

✕AAC and SBC only

✕No wireless charging

Read the full SoundGuys review →

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 (1st gen)SoundGuys Headphone Preference Curve

Measured frequency response (dB) against the SoundGuys house target — the dashed curve. The closer the measured line tracks the target, the more neutral the tuning; peaks ride above the target, dips fall below it.

Frequency response — measurement data

CMF by Nothing Buds (1st gen): frequency response, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Response (dB)
20	7.1
25	9.5
32	12.7
40	15.8
50	16.1
63	14.3
80	14.3
100	9.3
125	5.4
160	3.2
200	0.9
250	-1.1
315	-2.9
400	-5.6
500	-4.0
630	-0.4
800	0.7
1000	0.0
1250	1.1
1600	4.8
2000	8.5
2500	10.0
3150	10.6
4000	9.4
5000	8.1
6300	6.4
8000	7.4
10000	-4.6
12500	2.6
16000	-3.3
20000	-28.4

CMF by Nothing Buds (1st gen)

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

Passive isolation — measurement data

CMF by Nothing Buds (1st gen): passive isolation, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Attenuation (dB)
21	3.5
26	2.9
33	1.5
41	1.8
52	3.0
65	2.4
82	2.8
103	3.2
130	3.2
163	4.4
205	5.7
259	6.5
325	7.0
410	7.6
516	4.1
613	6.8
772	11.0
972	12.3
1220	13.0
1540	15.1
1940	19.5
2440	26.0
3070	32.3
3870	25.4
4870	19.4
6130	19.2
7720	18.6
9720	29.6
12200	15.7
15400	24.7
19400	31.4

CMF by Nothing Buds (1st gen)

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

Noise cancelling — measurement data

CMF by Nothing Buds (1st gen): noise cancelling, as measured in the SoundGuys lab. Frequency in hertz.
Frequency (Hz)	Total attenuation (dB)
21	0.9
26	13.6
33	14.0
41	20.1
52	23.8
65	17.1
82	14.2
103	11.6
130	10.1
163	14.8
205	15.2
259	13.5
325	11.7
410	12.8
516	8.0
613	11.3
772	21.2
972	27.0
1220	28.4
1540	25.0
1940	23.4
2440	36.9
3070	30.3
3870	30.1
4870	17.9
6130	15.3
7720	18.1
9720	29.9
12200	14.5
15400	29.9
19400	31.4