Although you can 8 different frequencies at a distance from the transmitter to adjust 9MHz (2.409 to 2.472 GHz) so that other devices are allegedly not bother - but unfortunately that did not work with me. No matter which channel (0-7) has been selected on the transmitter regardless of which channel the AP was set (1-13) - I was not able to connect to my AP; the connection has already been established, and then the station could be turned on to receive any more packages - ergo the station blocked the connection / transfer to our WLAN. In our router menu Fritzbox equal to 6 channels have been identified as sources of interference with impenetrable eingeschaltenem stations. Even if sender and AP were as far apart as possible, ie transmitter to 2,409 & AP at 2.472 Unable to connect.
That was also the reason why I have returned the headphones - use again my old AKG T305 UHF - Although the rushes, it does not bother our WLAN.
Personally, I can only recommend the headphones someone who appreciates a relatively noise-free transmission and no WLAN operates.