3 groups HD AV signal input 1 group HD AV signal output power self-supply Audio Video Switcher, Av-3 for LD/VCD DVD Player Video Camera/Recorder Video Game Specifications:Share one TV with 3 different sourcesNo need to unplug and plug in wires when changing from game consoles, DVD players, RCA players, and even digital camcorders.Designed to provide sharp, clear audio and video for your home ...