Item Type: Backup Camera Transmitter Material: ABS Length: Approx. 120cm/47.2in Working Voltage: DC 12V Working Current: 200mA Working Temperature: -20 to 80 Receiver Sensitivity: -85Dbm Video in/out: NTSC / PAL Transmit/Receive Frequency: 2370 MHZ-2468 MHZ Transmitting/Receiving Distance: Approx. 0-100m/0-110yd (In an open and undisturbed place, the receiving distance can reach 100 meters) How to Use: 1. Wireless transmitter power connection: Red to reverse lamp power supply + Black to reverse lamp power supply - 2. The yellow RCA video input plug connect RCA video output jack of rearview camera. 3. The red power output plug connect the rearview camera power supply jack. Package List 2 x Backup Camera Transmitter 1 x Manual 1The installation is extremely easy, the receiver connect to monitor, and the transmitter connect to rear camera, avoid complicated wiring. 2Wireless RCA video receiver/transmitter is to be used with in?car monitor, backup system, head unit, DVD player and camera, etc. 3Only when you pull reverse, the monitor will automatic show backup picture full time, more intelligent to use. 4You could connect all parts to constant power or 9V/12V battery (not included), when using for car rear view camera. 5In an open and undisturbed place, the receiving distance can reach about 100 meters, more efficient to use.