Who wireless (apparently only in laptops a problem) should be used keep his hands off the headset.
Once the transmitter in the USB slot or the cable is plugged in is the Wi-Fi in the knee, so that nothing works when it comes to him away everything properly again. In the manual is that it (of course, not included) with "the" extension cable the transmitter remove the laptop is to reduce interference. Did not work and plugging and unplugging after 10 minutes I had enough and got the headset re-wrapped and will send it back.