The 4 port av switch high quality component audio&video switch is perfect for TV enthusiasts who want to add more inputs to their high-definition display. Use this switch to effortlessly connect a DVD player and set-top box or satellite receiver to your TV or projector. | It is switch by push button easily, allowing you to enjoy multimedia switching from the comfort of your seat. The AV switch supports high-end digital video devices such as DVD players and recorders, set-top boxes, satellite receivers, and more. | Adopt advanced circuit technology, high isolation, no distortion of output signal, no mutual interference | You can witch between four machines as you please. DVD、 Entertainment products such as set-top boxes and game consoles need to be used on a TV for widespread use in households. Owning it eliminates the hassle of frequent unplugging and unplugging of cables. | What you Get: 1 x AV Switch 3x1, 1 x User Manual. Ensures long-time satisfaction of your purchase: Friendly and easy-to-reach customer service to solve your problems timely. If you have any problems, Please contact us we will slove immediately.