This is a 1.2GHz 1000mW wireless transmitter and receiver kit with audio and video, mainly used for  CCTV cameras for long range wireless surveillance;

With reliable performance and light weight, it  is also used in the line of FPV, UAV, RC airplanes, etc. 

The wireless transmitter has 4 channels; the frequencies are:1.080GHz  1.120GHz  1.160GHz 1.200GHz


Specifications:
Voltage: DC 5~12V
Output Current: 150mA/DC5V
                             250mA/DC9V
                            300mA/DC12V
Output Power:  300mW/DC5V
                            700mW/DC9V
                           1000mW/DC12V
Video and Audio Output: 1 Vp-p (FM)
Audio Carrier Ware: 5.5M (default) 6.0M(customized)
Size of Transmitter: 60x28x10mm (LxWxH)
Effective Transmission Distance: Min. 2km