Sound quality and seating are good at the weight you have to get used to if you previously had only wired headsets. It can also be used with cable, if the battery is empty times, the included charging cable when USB cable is relatively long. The device has an on / off switch. Is powered by a 4-seconds Print, ie the caller must wait first for 4 seconds before you can say something. It can even turn on when it does not have on her head and it does not turn off by itself. The big drawback: The big leather upholstery is indeed soft and comfortable, but they shield the outside world too well, so that the headphones almost behaving as a circumaural version. For listening to music that's good for a headset, in which one talks usually, this is very bad. You can hear yourself talking and not talking much louder automatically. If one covers only one ear and the headset 'wrong' touches down, it is tolerable. But for normal calls somehow a bad design.
