1,user-friendly and conveniently 2,8 channels 3,power :12V 150mA 4,range:3km(maximum) ... -5865MHz; 8channels transmitting power: 23dBm/200mW transmitting distance:>3000metres frequency control:built-in frequency and phase lock loopAV input:analog AV ... *13mm(aluminium alloy extrusion profiles)we supply2.4ghz ,5.8ghz,1.2ghz,1.5ghz,remote control transmitter and receiverpayment:TT,Western union,Paypal ...