This allows you to connect multiple video devices with out (such as , , DVD, , Cable Box) to one set of standard yellow-white-red connectors of your TV using . Then you will be able to easily the input signal without the need to disconnect and your devices. Features - Color: Black. - Material: Metal shell. - Size: Approx. 13.5*8.3*3.8 cm/5*3*1.4 inch(L*W*H). - Audio Video Selector for DVD Cable Box to TV’s yellow-white-red connectors. - Simple push-button switching. - Metal enclosure, excellent stability and longevity. - Easy installation and operation. No extra power supply and software drive needed. - Specifications: 1. Video Input level Resistance: VS 0.8-1.0Vp-p/75Ω Output level Resistance: VS 0.8-1.0Vp-p/75Ω Bandwidth: 50Hz-5.5MHz Input Connector: 4 Output Connector: 1 2. Audio Input level Resistance: 2V( )/47KΩ Output level Resistance: 2V( )/1KΩ Frequency: 10Hz-20KHz,0db Input Connector: 4 ( ) Output Connector: 1 ( ) Package list: 1* -431 4 In 1 Out Composite Video L/R Audio Selector