CMF by Nothing Buds 2
By CMF · Budget Wireless Earbuds · Audio & Electronics
- Up to 48 dB Hybrid ANC with Environmental Adaptive mode across a 5200 Hz frequency range
- Up to 55 hours total playback / 13.5 hours buds only with ANC off
Lowest price seen
~$49.00 (approx.)
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Summary
The CMF by Nothing Buds 2 are budget earbuds with an 11 mm driver, hybrid ANC, six microphones and up to 55 hours of total playback with the case. Check the sound and the battery warranty: independent testing found a bass-forward tuning with some distortion, and owners report battery degradation near the end of the first year.
Strengths
- SoundGuys measured ANC as strong for the price class, with the most useful reduction in low-frequency transport and HVAC noise and about 82% perceived outside-noise reduction in its test setup.
- Measured overall sound quality of 4.5 under the MDAQS system.
- Long battery life: up to 13.5 hours per charge and up to 55 hours with the case.
- Good comfort and a feature-dense app with EQ, Ultra Bass, low-lag mode and customisable controls.
- Six microphones, dual-device connection and spatial-audio processing.
- IP55 water and dust resistance.
Weaknesses
- The 48 dB ANC figure is a marketing maximum that independent measurements do not reproduce across the spectrum.
- SoundGuys found measurable distortion and a bass elevation of roughly 5–9 dB above its preference curve.
- A 2026 owner reports severe battery degradation near the end of the first year, with fast earbud drain and a case that no longer holds charge.
- Another owner reports repeated failures to connect or play sound correctly after several months.
- There is no wireless charging.
- The earbuds are not documented as user-serviceable, and no public parts or battery-replacement program was found.
Verified specifications
| Driver | 11 mm PMI. |
|---|---|
| ANC | hybrid, claimed up to 48 dB, with Environmental Adaptive ANC. |
| Microphones | six HD microphones. |
| Connection | dual-device connection. |
| Resistance | IP55 water and dust. |
| Audio | Spatial Audio Effect. |
| Battery | up to 13.5 hours per charge and up to 55 hours with the case; a 10-minute charge is claimed to give up to 7.5 hours of playback. |
| Bluetooth | 5.4. |
| Case | 53 × 53 × 23 mm, package-system weight about 110 g. |
| Included | earbuds, charging case, USB-C cable and additional silicone ear tips. |
| App | Nothing X, with EQ, Ultra Bass, low-lag mode and customisable controls. |
| Wireless charging | absent. |
| Battery serviceability | no user-replaceable battery or public parts program documented. |
Full research notes and sources
Measured performance
The independent evidence is favourable on the two headline claims that matter most. SoundGuys rated the Buds 2 7.8/10 and measured ANC as strong for the price class, finding the most useful reduction in low-frequency transport and HVAC noise and about 82% perceived outside-noise reduction in its setup. It measured overall sound quality of 4.5 under its MDAQS system and reported good comfort and long battery life. The caveats are tuning and distortion: Nothing’s 48 dB hybrid ANC figure is a peak marketing maximum rather than an independent whole-band measurement, and SoundGuys measured peak attenuation lower than the headline number while still rating overall ANC highly. It also found measurable distortion and a bass elevation of roughly 5–9 dB above its preference curve, so the sound remains bass-forward even after the improvement over the earlier model.
Battery and long-term ownership
Battery is the core selling point and the main long-term risk. Nothing rates playback at up to 13.5 hours per charge and up to 55 hours with the case, with a 10-minute charge claimed to provide up to 7.5 hours. The earbuds are IP55-rated but are not documented as user-serviceable, and no replaceable battery or public parts program was found. Owner evidence on durability is sparse but points the same way: a 2026 owner reports severe degradation near the end of the first year, with fast earbud drain and a case that no longer holds charge, and another exact Buds 2 owner reports repeated connection or playback failures after several months. These are individual reports and do not establish prevalence, but for a sealed-battery product they make return and warranty support unusually important, and the lack of wireless charging is a further gap.
Features and app
The Buds 2 are a feature-dense budget pair rather than a stripped-down entry model. Nothing includes hybrid ANC, six HD microphones, Environmental Adaptive ANC, dual-device connection, IP55 resistance and spatial-audio processing. The Nothing X app provides EQ, Ultra Bass, low-lag mode, customisable controls and dual-device connection, which is a broader control set than the price class usually offers. Connectivity is Bluetooth 5.4, and the package includes the earbuds, charging case, a USB-C cable and additional silicone ear tips, in multiple colours, though no user-replaceable battery is documented.
Which model this is
This page covers the exact CMF by Nothing Buds 2, released in 2025 and using an 11 mm PMI driver, hybrid ANC and the Nothing X app. Do not merge it with the CMF Buds, Buds Pro 2, Buds 2a or Buds 2 Plus, which are distinct models with different hardware. The manufacturer page lists multiple colours but does not document a user-replaceable battery for any of them.
Sources
Manufacturer:
Independent reviews:
Owner reports: