IR over Coaxial Cable kit, Includes Injector and Coupler, Used For Transmitting IR Remote Signals on Coaxial Cables, Max Distance: 200 feet Warranty: Lifetime Comes with an IR to Coax injector and Coax to IR coupler Designed to use one receiver and up to two emitters Accept the IR signal over the coax from the injector and send it to as many as two IR emitters (part number 332-500)