Infrared Repeater Kit controls your IR remote controlled devices that are hidden behind doors or in other rooms. Kit controls up to 10 devices - Expandable to 12 devices IR Repeater controls up to 10 home theater devices kept behind closet doors or in a closed cabinet with IR Infrared Remote Control Extender Repeater System. This product allows you to control A/V equipment with your existing IR remote controller, such as: amplifier, cable box, stereo receiver, Satellite TV receiver, CD player, DVD player, Blu-ray player, Etc