This is a great transmitter and a receiver for both video and audio. It allows you to transmit video and audio from one location to another. It's good for home and office use. For example, if you have a spare LCD monitor (provided that is has video/audio in), then you can use this device to extend your TV/Stereo signal from your living room or elsewhere remoteness less. There is a lot more than you can do , installs in minutes, just plug the transmitter and receiver into the AC outlets at the desired locations. The extender even works in situations where you can't easily place the receiver in front of video or audio equipment. You can still use your existing remote control to operate audio/video equipment from any room in your house/office. Microwave anti-interference performance well . This machine adopts the microwave transmission means with sound/video signal.