You want to connect multiple audio-video equipment units but have limited television input signal source terminals. Frequently plugging and unplugging signal cables can be inconvenient. This switch allows you to connect up to four AV audio-video signal inputs and switch to one output for your television. Compatible with DVD, VCD, TV game players, VCR, satellite TV, cameras, XBOX, PS2, PS3, Wii, cable boxes, and other devices using standard yellow-white-red RCA connectors. Features a mechanical push-button design for easy switching without the need for external power. Constructed with a metal enclosure for durability and stability. Compact design ensures reliable performance. Simple installation and operation—no additional power supply or software required. Switch between AV sources using the front panel button. Supports devices with standard A/V connections, delivering clear audio and video signals via standard RCA "VIDEO, R-AUDIO-L" (yellow-red-white) connectors.