Introduction: new and ,buy with confidence. TX means transmitter, RX means receiver This wireless extender transmits HD audio video signals through the built-in wireless transmission protocol. Let you easily enjoy large screen wirelessly,more efficient,shocking,relax and is good for eyes. It breaks the -compatible cable transmission distance limit, No complicated cable or wire installation needed. so setup is quick and easy, without worrying about wiring problems ,saving decoration costs, the transmission distance can up to 200m under barrier- space of one transmitter to one receiver mode. It supports Full HD 1080P wireless transmission. No need to install driver or apps, no need extra wifi, pair and works,so easy It works with most -compatible video source devices,such as TX connect to DVD, DVR,TV Set-top Box,HD camera,Notebook, for PS 3/4/5 etc, video source devices RX connect to HDTVs , projectors, monitors, etc. display devices. Material: plastic colour: black Package Contents: 1 x Video Transmitter 1 x Video Receiver