1.2G 800mW Wireless AV transmitter's(FOX-800A) data: 

Working Voltage: DC 12V 
Working Current: 260mA 
Output Frequency: 0.9G/1.2G/1.3G 
Channel Number: 8CHS 
Output Power: 800mW 
Video Output: 1 Vp-p(FM) 
Audio Output: 1 Vp-p(FM) 
Audio carrier ware:  5.5M 6.0M 
Weight: 82g 
Dimension(L*W*H): 53*45*19mm 
Unobstructive Effective Range: 800~1600metres
Package: 1transmitter, 1antenna, TX cable