An infrared (IR) repeating system normally consists of an infrared receiver, connecting block with power supply, and infrared emitters. This system allows you to locate your audio/video equipment in a place where a remote control normally would not be able to control them. The infrared receiver receives the remote control signal and relays it to the connecting block which repeats the remote control signal onto your a/v components. You can build your own IR system using the components below or get a complete infrared kit.