Hi, since my old headset is broken, I thought, I order a new fast times. This system-S here looks so at first glance, not so bad, as I unpacked it and wanted to test Kam then different than expected. comfort I have to say is very good if you want to continuously press the button attached to the mic! At first I thought it was a joke when I wanted to listen to music, but this was so bad and unrecognizable reproduced! only if you hold this key gedrück, you get reasonably good sound. then I thought I improvise something, got the key rebuilt so that it is constantly being pressed and what came out at? wanted to call it, and the mic does not work, nichmal the sound from the caller arrives at the headset! so I'm going this headset still return, because that is in my view not a headset.