Input 2.4 GHZ four channelA/V transmission and reception model; control method: manual; 1/3, 1/4 CMOS image sensor; wireless camera supply Voltage: DC9V; current: 300mA; input 700HMA battery; wireless receiver supply voltage: DC12V; current: 500mA; standard: PAL/CCIR NTSC/EIA ; pixel:PAL5.78*4.19mm,NTSC4.69*3.45mm; level definition:380 line; transmission power:200mW,transmission distance:300m(open); receive sensitivity: -105dB.