1. 4-input 1-output AV RCA audio video selector switcher allows you to connect four audio or video sources to one TV with standard yellow, red and white RCA connectors enabled. This is very useful if your TV has limited inputs and you want to switch between multiple devices without frequently unplugging cables. 2. Plug and play, no external power supply required, audio and video synchronous transmission without delay. 3. Adopt copper shell nickel-plated interface, resistant to plug and unplug; anti-oxidation metal shell, anti-interference and anti-corrosion 4. Resolution: 1280 x 720P 5. Compatible with: CVBS 6. Size: 140 x 73 x 40mm
