After I entered my data at Logitech, I could my device (amplifier, receiver (SAT), BluRay player, etc. and the associated terminals (HDMI 1 ..) entries for the remote control. It was very easy. Unfortunately, some settings were changed when switching of individual devices (HDMI 2 on AV1) and I had no sound. Women 'Sara' and colleagues Logitech took the time (approx. 1 hour) and had the knowledge to help me. Now everything works without problems. I can not and will only recommend this Logitech and learnable remote control. SUPER