Probably, you have stored your AV equipment in a cabinet. To keep everything tidy and clean, you have also closed the doors of the cabinet to hide the equipment and its cables. The EW1580 IR Extender Kit extends the IR signal of your remote control and lets you send commands to the A/V equipment that is hidden behind doors or stored in a closed cabinet. The EW1580 comes with 12 IR emitters for controlling 12 AV devices. The extender is powered via the included adapter.