I got into an extremely unpleasant situation because of these headphones (even a series of situations). The microphone mute button on the cord is broken, or it was originally like that. At work events, I thought that I turned off the microphone, in fact, the microphone remained on. As a result, he said a lot of things that were not intended for the ears that heard my statements. I may end up unemployed ==== Then I read remarks that the button muffles the surrounding sounds, and not the microphone itself. It's strange, the offsite just says MUTE, without any clarification.