Earbuds · Model guide · Maker specs
CMF Buds 2
Get CMF Buds 2 for noise cancelling and long battery on a budget: $49 on sale buys up to 13.5 hours per charge, or 55 with the case.
Product images
CMF Buds 2, from its Amazon listing.
Credit: Amazon.com (Associates Program). Amazon listing
Product image from the Amazon listing.
In short
Get CMF Buds 2 for noise cancelling and long battery on a budget: $49 on sale buys up to 13.5 hours per charge, or 55 with the case. CMF says its Adaptive ANC reaches 48 dB, and you get 6 microphones, Bluetooth 5.4 with dual connection and IP55 buds. Skip it for LDAC: CMF Buds Pro 2 adds it, plus a second driver, and was also $49 on sale.
Who it is for
- Budget buyers who want noise cancelling: Adaptive ANC that CMF rates at up to 48 dB, plus a Transparency mode, for $49 on sale or $59 at full price.
- People who hate charging. The buds run up to 13.5 hours, and the case takes that to 55.
- Android and Windows users. Google Fast Pair and Microsoft Swift Pair speed up pairing, and dual connection keeps two devices linked.
- Anyone who sweats through workouts or walks in the rain: the buds are rated IP55.
Who should skip it
- LDAC listeners. CMF Buds Pro 2 adds LDAC and a 6 mm driver beside the 11 mm one, and it was also $49 on sale ($69 full price).
- Anyone who wants an open fit. Nothing Ear (open) hooks over the ear instead of sealing it.
- Listeners ready to spend more on sound. Nothing Ear, at $109, uses a ceramic driver.
- Anyone who wants wireless charging: CMF lists none, so the case needs a USB-C cable.
What sets it apart
- Adaptive ANC that CMF rates at up to 48 dB, with Transparency mode a touch away.
- Up to 13.5 hours from the buds and 55 with the case; calls run 8.5 hours with ANC off and 7 with it on.
- 6 microphones with Clear Voice Technology 3.0 and Wind Noise Reduction 3.0 for calls.
- Bluetooth 5.4 with dual connection, Google Fast Pair, Microsoft Swift Pair and Find my earbuds.
- IP55 buds, against IP54 on CMF Buds Pro 2.
Caveats
- No USB-C cable in the box: you get the buds, the case, three sizes of eartips and paperwork.
- The case isn't water-proof. CMF's IEC 60529 note says so, though another part of its store page lists the case as IPX2.
- CMF's quick-charge figures don't line up: one part of its page says 10 minutes gives 2.4 hours from the buds, another says 10 minutes buys 7.5 hours of play.
Key specs
In the same order on every earbuds page, so you can compare pairs.
| Spec | Value | Source and notes |
|---|---|---|
| Form factor | Sealed in-ear with silicone eartips | CMF US store |
| Fit / tips / wings | Eartips in S, M and L; no wings or hooks | CMF US store |
| Driver / acoustic architecture | Custom 11 mm dynamic driver with a PMI (polymethacrylimide) and PU (polyurethane) diaphragm | CMF US store |
| Active noise cancellation | Adaptive hybrid ANC, up to 48 dB by CMF's figure | CMF US store |
| Transparency / ambient | Transparency mode; a touch control switches between it and noise cancelling | CMF US store |
| Spatial / 360 audio | Spatial Audio Effect with Dirac Opteo tuning (not Dolby Atmos) | CMF US store |
| Battery — buds | Playback up to 13.5 hours, with a second rating of 7.5 hours (mode not stated); talk 8.5 hours with ANC off, 7 with ANC on. CMF's feature copy adds 55 hours with the case and 10 minutes of charging for 7.5 hours of play | CMF US store |
| Battery — with case | Playback up to 55 hours, or 32 in the second rating; talk 35 hours with ANC off, 30 with ANC on | CMF US store |
| Charging | USB-C, no cable in the box. Buds charge in the case in 62 minutes; a full charge takes 93 minutes. Fast charge: 10 minutes for 2.4 hours (buds) or 4 hours (with case); wired: 4 hours (buds) or 7.5 hours (with case) | CMF US store |
| Water / dust — buds | IP55 (IEC 60529); protection can decrease with wear; not for swimming | CMF US store |
| Water / dust — case | Not rated for water-proofing, per CMF's IEC note; another part of the store page lists IPX2 | CMF US store |
| Bluetooth | Bluetooth 5.4; dual connection; range 10 m | CMF US store |
| Codecs | AAC, SBC (no LDAC; CMF Buds Pro 2 has it) | CMF US store |
| Microphones / calls | 6 microphones; Clear Voice Technology 3.0, Wind Noise Reduction 3.0 and an environmental noise-cancelling algorithm | CMF US store |
| On-bud controls | Touch: switch between ANC and Transparency; tap and hold to skip back or reject a call; triple tap to skip forward or answer; plus a double-tap gesture. Controls and EQ are customizable | CMF US store |
| Multipoint / device switching | Yes, dual connection | CMF US store |
| Sensors | In-ear detection; LED charging status light on the case | CMF US store |
| Weight — one bud | 4.5 g | CMF US store |
| Weight — case | 41.5 g | CMF US store |
| Dimensions — one bud | 33.4 × 22.8 × 20.6 mm (axes not labeled) | CMF US store |
| Dimensions — case | 53.3 mm high, 23 mm wide (third dimension not given) | CMF US store |
| Finishes | Light Green, Dark Grey, Orange | CMF US store |
| Phone / OS compatibility | Android 6.0 or later; iOS 13 or later. Game Mode latency under 110 ms with a Nothing Phone, CMF says | CMF US store |
| Find / Fast Pair / UWB | Find my earbuds, Google Fast Pair, Microsoft Swift Pair; no UWB | CMF US store |
| Companion app / firmware | App for Android and iOS: firmware updates, Find my earbuds, custom EQ and controls | CMF US store |
| US price | $49 on sale; $59 original (CMF US store, 19 September 2026) | CMF US store |
| Price band | Entry (under $60) | Based on CMF's US prices |
| Availability | On sale at the CMF US store on 19 September 2026 for $49 ($59 original); CMF Buds Pro 2 is the dual-driver model | CMF US store |
CMF Buds 2 extras
Specs only this model has.
| Spec | Value | Source and notes |
|---|---|---|
| Single driver | Custom 11 mm dynamic driver; CMF Buds Pro 2 pairs an 11 mm with a 6 mm | CMF US store |
| Dirac Opteo / Spatial Audio Effect | Dirac Opteo, Spatial Audio Effect and Ultra Bass Technology; tuned by Nothing and Dirac | CMF US store |
| ANC depth claim | “48 dB Hybrid ANC” and “up to 48 dB”, both CMF's figures | CMF US store |
| In the box | Earbuds, charging case, eartips (S, M, L), user guide, safety and warranty information; no USB-C cable | CMF US store |
Noise cancelling for $49
CMF Buds 2 use hybrid Adaptive ANC, which CMF rates at up to 48 dB; that’s its own figure, not a measurement you can compare across brands. A touch on the bud switches between noise cancelling and Transparency mode. For calls, 6 microphones work with CMF’s Clear Voice Technology 3.0, Wind Noise Reduction 3.0 and an environmental noise-cancelling algorithm.
Battery and charging
| Mode | Buds | With case |
|---|---|---|
| Playback | Up to 13.5 hours | Up to 55 hours |
| Playback, second rating | Up to 7.5 hours | Up to 32 hours |
| Calls, ANC off | 8.5 hours | 35 hours |
| Calls, ANC on | 7 hours | 30 hours |
CMF doesn’t say which noise-cancelling setting each playback rating covers; the call figures show ANC costing about an hour and a half. The buds hold 53 mAh and the case 460 mAh. Charging is USB-C only: the buds refill in the case in 62 minutes, and a full charge takes 93.
The quick-charge claims are muddled. CMF’s spec lists 10 minutes for 2.4 hours from the buds or 4 hours with the case, plus a wired figure of 4 or 7.5 hours, while its feature copy says 10 minutes buys 7.5 hours of play. Count on the lower figure.
Sound and connections
Each bud has a single custom 11 mm dynamic driver with a PMI and PU diaphragm, tuned with Dirac: CMF lists Dirac Opteo, Spatial Audio Effect and Ultra Bass Technology. Bluetooth 5.4 carries AAC or SBC up to 10 m, and dual connection keeps two devices connected. Google Fast Pair and Microsoft Swift Pair speed up setup, and the app adds custom EQ, control mapping and Find my earbuds. CMF quotes Game Mode latency under 110 ms with a Nothing Phone. You need Android 6.0 or iOS 13 or later.
Water and dust
The buds are rated IP55 under IEC 60529, and CMF warns that the protection can wear down over time, so don’t swim with them. The case is another matter: CMF’s IEC note says it isn’t rated for water-proofing, even though another part of the store page lists it as IPX2. Treat the case as unprotected.
Buds 2 or Buds Pro 2?
| Spec | CMF Buds 2 | CMF Buds Pro 2 |
|---|---|---|
| Drivers | 11 mm | 11 mm + 6 mm |
| LDAC | Not listed | Yes |
| Buds rating | IP55 | IP54 |
| Price | $49 on sale, $59 original | $49 on sale, $69 original |
At the same sale price, Pro 2’s second driver and LDAC make it the stronger pick for music from an LDAC phone; Buds 2 has the slightly better water rating. CMF Buds Pro 2 has its own guide, and so does Nothing Ear, the $109 step up with a ceramic driver.
Price and colors
On 19 September 2026 the CMF US store sold Buds 2 for $49 instead of $59, in Light Green, Dark Grey and Orange. If it’s back at $59, see what Pro 2 costs before you buy, since it was listed at $49 on sale too.
Sources
- Amazon product listing — accessed 2026-09-20
- Nothing US store — CMF Buds 2 — accessed 2026-09-19
- Nothing — CMF Buds 2 — accessed 2026-09-19
Frequently asked questions
Is this the same as CMF Buds Pro 2?
No. Buds 2 has one 11 mm driver and lists AAC and SBC. Pro 2 pairs an 11 mm driver with a 6 mm one, adds LDAC and is rated IP54, against IP55 here. Pro 2 was listed at $49 on sale ($69 full price), the same sale price as Buds 2 ($59 full price).
Does a USB-C cable come in the box?
No. The box holds the buds, the case, eartips in three sizes, a user guide and safety papers, so bring your own USB-C cable.
Can I swim with CMF Buds 2?
No. The buds are rated IP55 against dust and water, but CMF says not to swim with them, and the case isn't water-proof.
Can I use CMF Buds 2 with an iPhone?
Yes. CMF lists iOS 13 or later and Android 6.0 or later. Google Fast Pair handles quick pairing on Android, and Microsoft Swift Pair does the same on Windows.
Do they support wireless charging?
No wireless charging is listed. You charge the case by USB-C, and a full charge takes 93 minutes.
Official product page: CMF Buds 2. Tech specs: CMF Buds 2 specs.