Those of you looking for clarity in sound, look elsewhere. Those of you looking for heavy bass and muddiness in the other frequencies, you can go for it. I expected something more high-quality from OnePlus when the corresponding Xiaomi HD ones have much better sound for the same price. The mids and highs sound like listening through a bucket of water. As for fit and comfort, they are perfect. No issues with conversations either, but when it comes to music, they are disappointing. There are exceptional options from Soundmagic or other companies for a little more money

The truth is that I bought them mainly for hands-free use, at around €20, due to the type C and convenience, so you don't have to carry adapters, etc. - I use much better headphones for listening to music, so I didn't expect anything special. It wouldn't be an exaggeration to say that I was impressed with their quality. Okay, don't expect crystal-clear mids, but the sound reproduction is of high quality, clear, with a sweet yet powerful bass, and the headphones have an integrated DAC and sound separation system between the two earphones to avoid distortion. For average to okay quality compressed files that most of us listen to, these headphones sound like they cost twice as much. The volume also reaches levels that you can't handle, which is rare. And even though I have headphones that cost €80+, I use these more often. If I have something to complain about, it's the comfort during prolonged use, as I have definitely tried better headphones in that regard. They also work properly with Huawei devices. Overall, they are highly recommended.