the infared Enhancements ir-83 served its purpose. you can order "through walls" the devices. However, the cable is much too short, with a 60cm deep lowboard ranges of 1 receiver even more forward, if one egg directly behind is the "shapely" in the know (minimum length). However, but can also use the 2 different receiver still easily my 4 devices in the cabinet with feed signals. the number of devices is theoretically unlimited, not 3 as indicated. I use special equipment that not everyone has, I can here the performance of these devices with the IR-83 confirmed for: Telekom Entertain receiver 303 and the western digital live steamer. both devices operate with the ir-83rd However, I have found that going through the IR-83 to operate the device entertain a bit slow on the stage. while zapping and co still fold, is a turn off at the end of the television in the evening unfortunately not possible. at least I did it in 5 do not even try business. Switch on and go zap etc but. annoying it is, of course, because we now theoretically but must open the cabinet to check that all devices are off. All in all, the device exactly what it should do. only the cable you should prolong times. This is a jack connector, possibly it could even increase with a jack extension cable. Unfortunately I just none on hand, so it has to who try another. Important: It is 1 cable sensors 3, therefore are device in 2 different not restrict possible unless it can be a direct connection between two manufacture (ne hole fix)