Enable your TV set to be connected with 3 peripheral devices, such as Xbox, DVD player, PS3 etc. Compatible with all devices that utilize RCA inputs such as your TV. No external power needed, easy to use. No need to unplug wires when switching between game consoles, DVD players, digital camcorders when using the 3 to 1 multi-switch3 RCA (Female) to 1 RCA (Female) port 3 way Audio/video switch/Splitter.