1 / 7CMF by Nothing Buds 2a Wireless Earbuds, Dark Grey
Wireless Dark Grey: CMF by Nothing Buds 2a are in-ear Bluetooth earbuds with active noise cancellation and a stated 8-hour battery life. The listing also claims a 35.5-hour total with the case, while customer feedback raises concerns about battery performance and durability.
At a glance
- The listing specifies Active Noise Cancellation and Transparency Mode, so listening can be switched between noise reduction and awareness modes.
- App control is listed, and the feature description claims adjustable ANC and custom EQ through the Nothing X app.
- The feature description claims 8 hours of playback and 35.5 hours with the case, plus a 10-minute quick charge for 5.5 ANC-free hours.
Reference price: $79.00
Price checked: 14 Nov 2026
View offerAhead of Black FridayExplore the selectionPros and cons
Pros
- Active noise cancellation and a transparency mode are listed for different listening situations.
- The listed app controls and custom EQ claim offer adjustment options beyond touch control.
- The feature description claims wind-noise reduction and four HD microphones for calls.
Cons
- Customer feedback includes concerns about battery life and durability, including reports of short runtime and some units stopping after a period of use.
- Sound quality and comfort feedback is mixed, so fit and audio preferences may affect satisfaction.
Technical specifications
30 specifications| Brand | CMF BY NOTHING |
|---|---|
| Model | CMF Buds 2a Dark Grey |
| Colour | Dark Grey |
| Ear placement | In Ear |
| Style | Modern |
| Noise control | Active Noise Cancellation |
|---|---|
| Noise control features | Transparency Mode, Wind Noise Reduction |
| Driver type | Dynamic Driver |
| Driver size | 12.4 Millimeters |
| Impedance | 32 Ohms |
| Sensitivity | 42 dB |
| Frequency response | 2900 Hz |
| Frequency range | 2900Hz - 20Hz |
| Earpiece shape | rounded tips |
| Wireless connection | Bluetooth |
|---|---|
| Bluetooth version | 5.4 |
| Bluetooth range | 10 Meters |
| Control method | App |
| Control type | Touch Control |
| Compatible devices | Smartphones, Laptops, Gaming Consoles |
| Headphone jack | No Jack |
| Earbud battery life | 8 Hours |
|---|---|
| Battery life listed with case | 35.5 Hours |
| Case charging time | 89 Minutes |
| Case battery capacity | 460 Milliamp Hours |
| Weight listed | 42.75 Grams |
|---|---|
| Case length | 54.7 Millimeters |
| Case height | 23 Millimeters |
| Enclosure material | Plastic |
|---|---|
| Water resistance listed | Not Water Resistant |
What to know before buying
Listing details to confirm
Listing details conflict or remain unconfirmed: it claims IP54 water and dust resistance in the feature text, but the specification says “Not Water Resistant”. The title states 42dB ANC and 35.5 hours, while the details separately list 42 dB sensitivity and 35.5 Hours for case battery life. Treat the claimed ratings and runtime as listing information, not verified performance. The feature text also describes USB-C case charging, though that connector is not otherwise specified.
Who is it for?
A good fit for
- Listeners wanting in-ear Bluetooth earbuds with active noise cancellation and a transparency mode.
- Buyers who want app-based adjustment and custom EQ options, as described in the feature text.
- People considering earbuds for calls, noting the listing's microphone and wind-noise-reduction claims.
Less suited to
- Buyers who need confirmed water resistance, given the conflicting protection information.
- Those prioritising dependable long battery life or long-term durability, as customer feedback raises concerns in both areas.
Customer reviews on Amazon
- 5 stars
65% 65% - 4 stars
16% 16% - 3 stars
7% 7% - 2 stars
5% 5% - 1 star
7% 7%
Customer feedback is broadly positive about perceived quality and noise cancellation, but sound quality, reliability, comfort and value receive mixed reactions. Battery life and durability draw criticism, including reports of around four hours of use and some units stopping after two months. That matters alongside the listing's 8-hour earbud and 35.5-hour with-case claims, which are not a guarantee of individual results.
Positive themes
- Customers describe the earbuds as good quality.
- Customers appreciate the noise cancellation.
Negative themes
- Battery life and durability are criticised, including reports of short runtime.
Mixed feedback
- Sound quality, reliability, comfort and value receive mixed feedback.
Frequently asked questions
Do the CMF Buds 2a have active noise cancellation?
Yes. Active Noise Cancellation is listed, alongside Transparency Mode and Wind Noise Reduction.
How long is the stated battery life?
The listing gives 8 Hours for the earbuds and 35.5 Hours for battery life with the case. Customer feedback includes reports of shorter battery duration, so actual use may differ.
Are these earbuds water resistant?
The listing is inconsistent. Its feature description claims IP54 protection, but the specification says “Not Water Resistant”. Confirm the protection claim for the selected listing before relying on it.
What controls and app features are described?
Touch controls and app control are listed. The feature text says the Nothing X app offers custom EQ and ANC adjustment.
Alternative options
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CMF by Nothing Buds Wireless Earbuds Dark Grey, with 42dB ANC, Transparency Mode, Ultra Bass Technology 2.0, HD Audio by Dirac, IP54 Dust and Water Resistance and Dual Device Connection
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CMF by Nothing Buds 2 Plus Wireless Earbuds, Adaptive Noise Cancelling, Hi-Res Audio Bluetooth Headphones, 12mm Drivers for Deep Bass, 50dB ANC 61.5H Playtime Earphones with 6 Mics, Blue
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Lyvixora CMF Buds Pro 2 Case - Secure Lock TPU Protective Cover with Keychain, Transparent Soft Case for Nothing Buds 2, Shockproof & Scratch-Resistant Charging Case (Clear)
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