The CMF by Nothing Buds Pro ranks #226 out of 1490 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Prices on this page were last checked October 20, 2026 at 10:35 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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#226 CMF by Nothing Buds Pro: $42 Wireless Discontinued eBay
Pros: Budget wireless ANC earbuds at about $42 with a preference score of 78. Bass is full to 20 Hz with a 3.4 dB lift, battery life is 11 hours (39 with the case), and they are rated IP54.
Cons: A 4.5 dB peak near 7.7 kHz can make sibilants stand out. They are discontinued and Bluetooth codecs stop at AAC, and the score rests on a single measurement.
Is the CMF by Nothing Buds Pro right for you?
Buy it if
- you want the tuning most listeners prefer in blind tests out of the box (Harman score 78).
- you want sub-bass rumble that reaches down to 20 Hz.
- you want noise cancelling for commutes or flights.
Skip it if
- you want to buy it new: it is discontinued.
| Released | Sep 2023 (3 years ago) |
|---|---|
| Active Noise Cancelling | Yes |
| Back | Closed |
| Battery Life | 11 hours; 39 hours with case (ANC off) |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Version | 5.3 |
| Connection | Wireless |
| Deviation From Target | 1.74 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 11mm dynamic per earbud |
| Form Factor | In-ear |
| Harman Preference Score | 78 (1 squig.link measurement, calibrated to AutoEQ) |
| IP Rating | IP54 |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.4 dB at 30 Hz) |
| Tonal Tilt | -0.27 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -2.3 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from a single measurement from squig.link, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 92 out of 100, up from 78.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.5 dB | 0.70 |
| Peak | 23 Hz | +3.8 dB | 2.46 |
| Peak | 49 Hz | -1.2 dB | 3.38 |
| Peak | 70 Hz | -3.5 dB | 2.10 |
| Peak | 154 Hz | +2.2 dB | 4.65 |
| Peak | 1,272 Hz | -1.5 dB | 4.93 |
| Peak | 3,671 Hz | +1.9 dB | 2.13 |
| Peak | 7,216 Hz | -3.0 dB | 4.19 |
Neutral target
Set a preamp of -1.9 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from a single measurement from squig.link, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 94 out of 100, up from 38.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.0 dB | 0.70 |
| Peak | 23 Hz | +3.4 dB | 2.76 |
| Peak | 47 Hz | -1.2 dB | 3.36 |
| Peak | 69 Hz | -4.0 dB | 1.89 |
| Peak | 96 Hz | -1.2 dB | 5.88 |
| Peak | 155 Hz | +2.3 dB | 4.42 |
| Peak | 1,272 Hz | -1.5 dB | 4.97 |
| Peak | 3,668 Hz | +1.9 dB | 2.12 |
| Peak | 7,216 Hz | -3.0 dB | 4.20 |
Studio flat target
Set a preamp of -4.0 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from a single measurement from squig.link, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 86 out of 100, up from 20.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.5 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 88 Hz | -3.7 dB | 1.21 |
| Peak | 147 Hz | +1.3 dB | 4.67 |
| Peak | 266 Hz | -1.4 dB | 1.76 |
| Peak | 1,263 Hz | -1.4 dB | 4.43 |
| Peak | 2,675 Hz | +3.9 dB | 2.37 |
| Peak | 3,705 Hz | +1.5 dB | 4.30 |
| Peak | 6,472 Hz | -3.5 dB | 2.61 |
Warm target
Set a preamp of -2.6 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from a single measurement from squig.link, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 94 out of 100, up from 78.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.3 dB | 0.70 |
| High shelf | 10,000 Hz | -3.6 dB | 0.70 |
| Peak | 23 Hz | +3.9 dB | 2.45 |
| Peak | 49 Hz | -1.2 dB | 3.30 |
| Peak | 69 Hz | -3.4 dB | 2.21 |
| Peak | 95 Hz | -1.2 dB | 5.81 |
| Peak | 155 Hz | +2.3 dB | 4.10 |
| Peak | 725 Hz | +1.4 dB | 2.94 |
| Peak | 1,331 Hz | -1.5 dB | 4.65 |
| Peak | 7,073 Hz | -4.8 dB | 1.92 |
Bass target
Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from a single measurement from squig.link, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 93 out of 100, up from 79.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.2 dB | 0.70 |
| Peak | 23 Hz | +4.0 dB | 2.36 |
| Peak | 51 Hz | -1.2 dB | 3.60 |
| Peak | 70 Hz | -3.2 dB | 2.27 |
| Peak | 154 Hz | +2.2 dB | 4.61 |
| Peak | 1,272 Hz | -1.5 dB | 4.92 |
| Peak | 3,673 Hz | +1.9 dB | 2.14 |
| Peak | 7,216 Hz | -3.0 dB | 4.18 |
Bright target
Set a preamp of -4.0 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from a single measurement from squig.link, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 91 out of 100, up from 30.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.1 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 23 Hz | +3.4 dB | 2.73 |
| Peak | 47 Hz | -1.2 dB | 3.41 |
| Peak | 69 Hz | -4.0 dB | 1.90 |
| Peak | 96 Hz | -1.2 dB | 5.92 |
| Peak | 154 Hz | +2.3 dB | 4.53 |
| Peak | 733 Hz | +1.1 dB | 3.96 |
| Peak | 1,280 Hz | -1.6 dB | 4.29 |
| Peak | 4,186 Hz | +3.9 dB | 1.44 |
V-shaped target
Set a preamp of -6.6 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from a single measurement from squig.link, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 88 out of 100, up from 78.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.8 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 23 Hz | +3.7 dB | 2.99 |
| Peak | 30 Hz | +1.0 dB | 4.90 |
| Peak | 67 Hz | -3.0 dB | 1.85 |
| Peak | 163 Hz | +3.2 dB | 2.99 |
| Peak | 343 Hz | +0.8 dB | 0.72 |
| Peak | 1,250 Hz | -2.0 dB | 3.92 |
| Peak | 4,234 Hz | +4.3 dB | 1.15 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the CMF by Nothing Buds Pro measures across the audible range, against the Harman in-ear target that most listeners prefer in blind tests. Where the line sits above the target that range sounds louder (more bass, brighter treble), below it quieter. The curve is a single measurement, and both lines are shifted so their 500 Hz to 2 kHz average sits at 0 dB.
Measurement data: a single measurement from the squig.link database of filk. Thanks to them for publishing their work.