TNP IR Repeater Extender Infrared Remote Control Hidden System Kit - Infrared IR Emitter Blaster Distribution Extension & Receiver Cable for Cable Box Home Theater AV Component Equipment HDTV An ideal solution for those who want to conceal their A/V components equipment inside a entertainment system cabinet or closet for a clean, stylish look IR Repeater system allows you to Control home theater components located behind cabinet doors Included with the system is - IR Receiver (2 inches by 1/2 Inch); Hidden IR Repeater Controller (3 1/2 Inches by 2 Inches); 2 dual IR emitters blaster Convenient IR confirmation LED with dual frequency to support infrared signals from a wider range of IR remote control such as cable box setup box STB; Support up to six emitter output connections Additional IR emitter blaster available for purchase at ASIN: B017LQAKXW; If you need to extend the IR blaster emitter cable, you can use a 3.5mm stereo audio extension cable and a 2.5mm to 3.5mm adapter at one end and a 3.5mm to 2.5mm adapter at the other end