CMF Buds 2a Review — Best ANC Under ₹2,500
About Rahul Verma: Rahul is a tech enthusiast and gadget reviewer with over 8 years of experience testing consumer electronics. He specializes in audio gear, smartwatches, and mobile accessories. When he is not testing products, you will find him exploring the latest in AI and smart home technology.
How We Tested
CMF Buds 2a
ANC Budget ★ 4.1/5CMF Buds 2a by Nothing with ANC, Bluetooth 5.4, and ultra-low latency gaming mode.
- Battery Life: 35 Hours
- Driver Size: 12.4mm
- Noise Cancellation: 42dB Active Noise Cancellation (up to 2900Hz)
- Bluetooth: 5.0
- Water Resistance: IP54 (buds), IPX2 (case)
The Quick Verdict
The CMF Buds 2a is a feature-packed budget TWS that brings 42dB ANC, Dirac-tuned bio-fibre drivers, and a distinctive Nothing design language to the sub-₹2,500 segment. With the excellent Nothing X app, dual device connection, and 35.5-hour battery, it is a compelling alternative to boAt and Realme's offerings. The ANC is genuinely effective for the price, and the sound quality is well-balanced.
The Good
1. Impressive 42dB ANC for the Price
The ANC is genuinely effective at reducing low-frequency noise — AC hum, traffic rumble, and metro rattle are noticeably dampened. It creates a much more immersive listening environment than most sub-₹2,500 TWS.
2. Dirac-Tuned Sound Quality
The 12.4mm bio-fibre drivers deliver a balanced, detailed sound signature with punchy but controlled bass. The Dirac tuning ensures vocals and instruments remain clear without bass bloat.
3. Ultra Bass 2.0 with 5 Levels
For bass lovers, the Ultra Bass mode adds extra thump across 5 levels. Level 2–3 is the sweet spot — punchy without muddying the mids.
4. Excellent Nothing X App
The companion app is well-designed, feature-rich, and does not require forced login. You get custom EQ, touch control mapping, low lag mode, find my earbuds, and a handy home screen widget.
5. Distinctive Design with Rotating Dial
The squarish case with a rotating lanyard dial stands out. The matte finish feels premium.
6. Bluetooth 5.4 with Dual Connection
Latest Bluetooth standard ensures stable connections, and dual device pairing lets you switch between phone and laptop.
The Bad
1. No Wear Detection
Removing an earbud does not auto-pause music — a feature available on cheaper Realme and OPPO TWS.
2. Case Is Bulky in Pockets
The squarish design protrudes prominently in tight jeans pockets.
3. Mids Can Get Sharp at High Volumes
Vocals at high pitches can sound shrill and uncomfortable at 80%+ volume.
4. Light Grey Color Gets Dirty Fast
The off-white Light Grey variant shows dirt and grime quickly.
5. Some Users Report Battery/Connection Issues
A minority of users report rapid battery drain in one earbud and connection dropouts after 4+ months.
6. IPX2 Case Rating Is Weak
While the buds are IP54, the case is only IPX2.
Who Should Buy?
| Buy If | Skip If |
|---|---|
| You want effective ANC under ₹2,500 | You need wear detection/auto-pause |
| You are a Nothing/CMF ecosystem fan | You want the longest battery life |
| You value a well-designed, login-free app | You need premium water resistance (IP55+) |
| You want distinctive design | You find sharp treble at high volumes uncomfortable |
| You need dual device connection | You want a compact, pocketable case |
Bottom Line
The CMF Buds 2a is the best ANC TWS under ₹2,500 from a brand that actually cares about software experience. The Nothing X app, Dirac-tuned sound, and distinctive design make it stand out in a crowded market.
Rating: 4/5 — Best budget ANC TWS with the best app experience.
Affiliate Disclosure:
This post contains affiliate links. We may earn a commission when you purchase through our links, at no extra cost to you.
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