This is a wireless receiver and transmitter kit which are used for video and audio camera.

Usage:
1. Transforming your wired/CCTV cameras into wireless solution: what you have to do is connecting your existing wired camera with the transmitter and then connect the receiver to TV/Monitors. 
2. AV system sharing: Connect the transmitter to the output of AV system, then connecting the receiver to TV/Monitors. So, you are able to share movies/programs at another place with the system.
3.The transmit power is very large, it could be reach 3W and the transmit distance is very far, please use the system according to the local law.