The IR remote extender kit allows up to (4) audio-video sources to be controlled via remote IR up to 2200ft (670m) away from the display via Cat5e/6 cable. The product comes with (1) IR sensor (500999) and (4) IR emitters (500998) for maximum cabling versatility. The product also features (3) pairs of screw terminal blocks allowing the (3) unused twisted pairs to be accessed for other low voltage services such as balanced video, audio or data. It is applicable for residential AV systems, classroom projector systems, digital signage, boardroom systems, collaborative PC systems, medical information systems and commercial display on/off control.