The CMF Buds 2a are true wireless earbuds with a custom 12.4mm biofiber driver tuned with Dirac, active noise cancelling up to 42dB and up to 35.5h of playback with the case. It suits students, commuters and everyday listeners who want ANC, dual connection and IP54 protection in a light pair.
Who the CMF Buds 2a is for
Commutes and study sessions: Adaptive ANC up to 42dB across a 2,900Hz range cuts rumble and chatter, and transparency mode lets voices back in.
Phone plus laptop: Bluetooth 5.4 with dual connection keeps two devices paired, and Google Fast Pair and Microsoft Swift Pair speed up setup.
Calls on the go: Four mics with Clear Voice Technology and Wind Noise Reduction 2.0 help keep your voice clear outdoors.
Workouts and rain: The earbuds are IP54 rated for dust and splashes, which CMF says handles rain and intense workouts.
Quick top-ups: A 10-minute cable charge gives up to 5.5h of listening with the case (ANC off).
Skip it if: you want LDAC or other hi-res Bluetooth codecs; the Buds 2a stream over AAC and SBC only.
Noise cancelling: Adaptive ANC up to 42dB, 2,900Hz range; transparency mode
Battery life: 8h per charge, 35.5h with case (ANC off); 5h / 23h (ANC on)
Fast charge: 10 minutes by USB-C cable gives 2h in the earbuds, 5.5h with the case (ANC off)
Bluetooth: 5.4, dual connection, 10m range
Codecs: AAC, SBC
Microphones: 4, with Clear Voice Technology and Wind Noise Reduction 2.0
Water resistance: IP54 (earbuds)
Weight: 4.28g per earbud, 42.75g case
App: Nothing X (Android and iOS) for EQ, controls, low lag mode and Find my earbuds
Genuine CMF stock. Free shipping on every order, 45-day returns.
CMF Buds 2a vs similar options
vs CMF Buds: Shares the 12.4mm bio-fibre driver, 42dB ANC, IP54 and 35.5h total, and adds faster top-ups (10 min = 6.5h with the case vs 5.5h); pick the Buds 2a for Bluetooth 5.4 (vs 5.3).
vs CMF Buds 2: Also CMF ANC earbuds, sold in Black, Green or Orange; pick the Buds 2a for a Light Gray finish and its larger 12.4mm bio-fibre driver.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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