I bought these headphones, I can say the following muffles well, the sound is excellent, but it’s not the instantaneous transmission from the device to the “ears” that confuses me, but also the transmission of the sound of pressing a key is very dull, so that the sound of pressing when speed dialing does not overlap each other, they go sequentially, that is, it turns out you finished typing and for another 2 seconds there is a knock on the key) it’s not criminal, but still)See full review