as I said, I don’t know Chinese, but thanks to these headphones I learned: chi hua chi - noise reduction mode is on, and I forgot the rest, because a couple of months ago the earpiece fell out of my ear while on the platform before the train left. it's a shame ( Has some pros: the sound is good. they only speak Mandarin, so you can learn a few new Chinese phrases with them. Cons below: I do not know Chinese and the headphones themselves are not beautiful