Xantech 29185DB Hidden Link LCD/CFL Proof Black IR Receiver Physical Characteristics-Dimensions-0.7 Height x 3.2 Width x 2.0 Depth; Xantech Hidden Link Lcd-Cfl Proof Ir Receiver Black Xantech Hidden Link 29185D LCD/CFL Proof Black IR Receiver Small shelf-top IR receiver Specifically designed for resistance to IR interference from LCD TVs Will also operate in direct sunlight 7-foot cable with 3.5-millimeter stereo mini plug that permits direct plug-in to Xantech connecting blocks with IR RCVR or AUX jacks Red talkback LED tests system for correct wiring as well as indicating IR reception