I've been testing CMF by Nothing's sub-$40 earbuds — here's 3 things I like and 2 things I don't

cmf buds 2a in the orange colorway photographed in front of a blue background
(Image credit: Tom's Guide)

As a tech reviewer, I spend a lot of my time testing out some of the best cheap wireless earbuds. And this month, I think I've found the budget buds that take the crown.

I've spent the last couple of weeks testing the CMF Buds 2a, and I've been blown away by their performance in sound, active noise cancellation and, of course, their price tag.

The CMF Buds 2a are available on Amazon U.S. for $39 at full price, but are regularly on sale for as little as $29 — an absolute bargain. So here's everything I like about the buds, and also the features that I don't like.

Article continues below
CMF BY NOTHING Buds 2a
CMF BY NOTHING Buds 2a: was $39 now $29 at Amazon

The CMF Buds 2A are some of the finest budget earbuds you can buy, at just $39, but they are often on sale for even cheaper. They offer impressive audio with superior treble and customizable ANC, making them a winner for daily use. Minor drawbacks, like the plasticky feel and lack of in-ear detection, are typical at this price point, and the overall performance makes them an excellent choice if you’re short of cash.

What I like

Impressive audio performance

cmf buds 2a in the orange colorway photographed in front of a blue background

(Image credit: Tom's Guide)

Despite the small price tag, these buds pack a punch in the audio department. With the inclusion of customizable EQ settings and tuning, the balanced soundstage makes these buds sound a lot more expensive than they actually are.

I listened to a whole host of different genres using these buds, including metal, pop, and electronic, and every one was well supported without any playback issues. I now carry these buds with me everywhere, and they've replaced my Apple AirPods 3 earbuds as my daily drivers.

Adaptive ANC

cmf buds 2a in the orange colorway photographed in front of a blue background

(Image credit: Tom's Guide)

I've tested a bunch of earbuds from CMF by Nothing, and they all have great active noise cancellation capabilities. These buds have a little less customization than more expensive models by CMF, but are still incredibly effective.

ANC can be adjusted in the Nothing X app or with touch controls on the stem of the earbuds. I could easily toggle between Noise Cancellation and Transparency Mode to ensure I was comfortable in my surroundings at all times.

Reliable battery life

cmf buds 2a in the orange colorway photographed in front of a blue background

(Image credit: Tom's Guide)

The CMF Buds 2a have an impressive battery life of 35.5 hours. This is with ANC turned off but for everyday listening, it's a reliable mount of battery.

If you're listening with ANC tuned on the total battery life is reduced to 23 hours. This is still enough battery that I can go all day without needing to recharge the case. I end up charging these buds once a week, and I listen to music with them every day.

What I don't like

No in-ear detection

cmf buds 2a in the orange colorway photographed in front of a blue background

(Image credit: Tom's Guide)

In-ear detection is a feature that gets missed out in a lot of cheap earbud models, and it's one I don't realise I need until it's gone. In-ear detection recognises when the buds are in your ear to pause and play your music accordingly, so you never miss a note.

Unfortunately, the CMF Buds 2a model doesn't have this feature, but other affordable models from CMF, like the CMF Buds 2 Plus, do.

Plasticky design

This is to be expected, but with the extremely low price comes a cheaper design. The buds are very lightweight and made from plastic.

Because of this, they feel slightly delicate, although I haven't had any issues with them. More expensive buds feel like they could withstand a drop, for example, but that's a trade-off you're making for cheaper buds.

But these are very minor flaws when considering all of the great things about these buds. They have become a staple in my bag and come with me everywhere; a totally reliable solution for when I need earbuds in a quick pinch.


Google News

Follow Tom's Guide on Google News and add us as a preferred source to get our up-to-date news, analysis, and reviews in your feeds. Subscribe to Tom's Guide on YouTube and follow us on TikTok.


More from Tom's Guide

Ashley Thieme
Staff writer, Reviews

Ashley is a staff writer on the the Reviews team at Tom’s Guide. She has a master’s degree in Magazine Journalism from Cardiff University and a BA in Journalism, Media and Sociology. She has written for titles including Women’s Health UK, writing health and wellness stories, and Virgin Radio UK, specializing in entertainment news and celebrity interviews. She has reported on a variety of topics including music, literature, motorsport, entertainment and health. She has previously reviewed live music events, books, and wellness products but discovering the top audio equipment on the market is what she does best. When she is not testing out the latest tech, you can find her either curled up with a cup of tea and a good novel or out hiking.

You must confirm your public display name before commenting

Please logout and then login again, you will then be prompted to enter your display name.