CMF Buds 2a Wireless Earbuds 2025 New Active Noise Cancelling 42dB Hybrid ANC Bluetooth Headphones, 12.4mm Dynamic Driver for Big Bass, 4 Mic Clear Call, Sport Ear Buds for iPhone, Android, Light Grey

Amazing value
I literally cannot imagine any competitors being a better value. This is from the perspective of a skateboarder.1. The noise cancelling is overall pretty good. It will turn off automatically when it detects wind, which is nice. It’s not suitable for you if you do things like cut/grind steel and make loud metallic banging sounds all day, the ANC clips and it’s pretty unpleasant. Aside from the it’s good.2. No issues with the buds falling out.3. Sound quality is overall very good, I think. Maybe not the clearest audio on earth, but it has very good bass response in my opinion.4. Battery life is acceptable, can’t expect too much here considering how small and lightweight they are.5. I don’t use the touch controls at all, not very useful in my opinion.Overall I love them, unbeatable for $30.

Better than I expected, needs NOTHING app to modify bass
I bought it on Black Friday for $20. I was not expecting much, was getting them for phone calls. Oh boy… these really caught me off-guard, they are actually very good! I have only used them as of this review less than one day, but I have been trying to make them sound as good as the BOSE QC35ii headphones I have (BOSE sound is in another league).Equalizer/Sound:Recommended Equalizer settings on Nothing app:BASS: +6MID: +1TREBLE: 0Ultra Bass: Level 5For rock, these settings are the best you can probably get (of course they still sound fantastic outside of rock). I tested these for live-streams (gaming/shooting) and voices sounded normal-good (compared to my headphones), normal songs sounded good, instrumental music (from Elden Ring) sounded very good, rock (I tested Abracadavre, a song from Call of Duty: Black Ops 1) and at around second ~0:20 where the good part starts, sounded somehow disappointing *with the default Dirac equalizer setting*, but once I tested the customized equalizer I just showed earlier it sounded MUCH better (still not even close to the BOSE headphones, but they do sound from acceptable to good now). If you combine these settings with a separate equalizer app, you can probably make these sound much better. The ANC (Active Noise Cancelling) is, like mentioned in Linus Tech Tips, pretty decent-good, it is like 1/3 the strength of the BOSE headphones (ANC from CMF does not hurt the 1st time you use it, I recall the 1st time I used the BOSE ANC that I felt being inside a submarine very deep in the ocean).Microphones during calls: sounds very clear (in a room with metal fans that make strong white noise). I tested by calling myself to another phone.Case: It fits extremely tight on the small pockets that jeans have. So far has done it’s job of charging, but since this is day 1 I will not talk about this aside of saying it works.Connection: Tested on an Asus Zephyrus G15 GA503QR (Linux Pop-OS), Xiaomi Redmi Note 11 and Google Pixel 6. In all it connects fast and stable. Sometimes increasing the volume increases more loudly one bud first but then the other bud catches up, but normally they both do it at the same time. Audio to video latency, okay-good. When I start a YouTube video the audio kicks in at like second 1-2, but after that no noticeably latency (very slight latency whenever I saw someone in a video game shoot, the sound and visual recoil of gun did not match, maybe 0.2-0.4 ms latency guesstimating by eye).Ear tip fit: pretty good, I recommend trying the large one for a better seal, so the ANC is better (not by that much).Does it fit: Yes, it does not fall off at all, can sleep while wearing them comfortably (sleeping on the side).Is this worth it? Yes (in my case, for $20 this was a steal), but I will suggest looking the Plus version of these earbuds since (I believe, please check first) the equalizer settings on the Nothing app for that earbud is much more detailed and advanced, also you can modify how strong you want the ANC to be (and has like personalized audio, whatever that means). The CMF Buds 2 Plus is $80 and CMF Buds 2A $50, so if you see the Plus in discount closer to $50 I suggest you get those; otherwise Buds 2A for less than $30 is very good deal (both are reviewed in Short Circuit channel on YouTube). Pretty satisfied.Updated 12/7/25:1. Bluetooth range: Much better than my Bose, very surprised.2. Battery life is very good, was in a call for like 2 hours and still had like 65% I believe.3. This supports the feature that Airpods have of “seamlessly” connecting between multiple devices and switching fast (I have not tried it, but you need the Nothing app to enable it.Annoyances:1. No way to disable hang up calls and other call specific touch gestures. I accidentally hung up a call trying to adjust my buds.2. The touch sensor is VERY sensitive, and… essentially the WHOLE stick of the bud is detected by the sensors, so just adjusting them at the tip (the opposite side of the sensor’s location) will still hang up the call, so be careful.3. If bud slides off your ear, use a smaller size. For me small size prevents them from falling off.So far very good and solid performance.

Affordable and good

+ battery life, dual connection, noise cancellation ok sound, good volume range good price- bass is overpowering and the highs are not very crisp but by adjusting the EQ it’s manageable. Great for calls, podcasts ok for music after adjusting the EQOverall yes from me