Farmunion 2 Way Audio Video Av Switch Splitter Selector Box with RCA Cable for DVD Ps3 Ps4 No additional software needed and power supply Convenient to operate--push the switch to the relative OUTPUT 1, 2, 3 Enable 2 video devices, such as Xbox, PS2, DVD to share 1 TV Save the time spent on the unnecessary connection Easy to install and plug the video devices to the INPUT 1, 2, 3 while TV to the output