Feature:1. The installation is extremely easy, the receiver connect to monitor, and the transmitter connect to rear camera, avoid complicated wiring.2. Wireless RCA video receiver/transmitter is to be used with incar monitor, backup system, head unit, DVD player and camera, etc.3. Only when you pull reverse, the monitor will automatic show backup picture full time, more intelligent to use.4. You could connect all parts to constant power or 9V/12V battery (not included), when using for car rear view camera.5. In an open and undisturbed place, the receiving distance can reach about 100 meters, more efficient to use.Specification:Item Type: Backup Camera TransmitterMaterial: ABSLength: Approx. 120cm/47.2inWorking Voltage: DC 12VWorking Current: 200mAWorking Temperature: -20 to 80Receiver Sensitivity: -85DbmVideo in/out: NTSC / PALTransmit/Receive Frequency: 2370 MHZ-2468 MHZTransmitting/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 Transmitter1 x Manual