Sumnacon&reg; USB IR Repeater - Infrared Remote Control Extender Repeater Hidden IR Repeater System with 1 Emitters 1 Receiver High sensitivity: Remote control signal receiving real-time response to fast forward without delay Easy Setup: This IR Repeater System is easy to use and sets up in minutes 5V USB Power Supply(Adapter not included) Allows IR signals to pass through solid doors or walls, line-of-sight to the components is not required Confirmation LED built-in to the IR receiver acknowledges receipt of IR commands Control Audio Video Components in Entertainment Cabinets or Equipment Closets using Existing IR Remote Controls