Working frequency: ISM 5.8GHz; Available Channel: 32 channel; A: 5865 5845 5825 5805 5785 5765 5745 5725MHz; B: 5733 5752 5771 5790 5809 5828 5847 5866MHz; C: 5705 5685 5665 5645 5885 5905 5925 5945MHz; D: 5740 5760 5780 5800 5820 5840 5860 5880MHz; Power Supply: DC +7V~+24V; Antenna Gain: 3dB; Video Output Level: 1.0Vp~p Typ/75; Audio Output Level: 1.0Vp~p Typ/10K; Video System: Auto; Dimensions (L x W x H): 60 x 42 x 25mm; Weight: 60g; Features: A: 32 channel; B: RF Power High firing distance; C: High brightness LED display; 2200mW RF Power output High brightness LED display Not affect by 2.4GHz R/C Radios Antenna connector: RP-SMA (hole inside) Small size light weight easy to carry DC in: 7~24V; Size: 58 x 40 x 20mm