A set of wireless transmitter and receiver for audio-video signals 1 W
http://spy.eu/wireless-cameras-spy-shops/495_BC27.html
This kit allows you to stream audio-video signal from your camera or other devices over a long distance. The transmitter's power is 1W and allows you to receive a signal from about 150 meters in line of sight. The sensitive receiver allows you to receive a redirect the signal to an external screen or recording device. You can tune the receiver and the transmitter to each of four standard channels (CH1 - 2.414GHz, CH2 - 2.432GHz, CH3 - 2.483GHz, CH4 -- 2.468GHz). The power adapter is DC you can supply power ranging from 9V to 12V.
