12V 4G Wireless Color Video Transmitter and Receiver for Car Rear View Camera and Car DVD Player Parking Monitor Advantage: With this wireless module, it is no need to lead wire from the front to back of car, so it will save many camera installation job and it will more easy for you to install camera. Please use this product according to our schematic diagram, if there is no image, the main reason is that your connection is wrong, if you have any questions, please contact us Specification: 100% brand new,high quality. Easy installation. Take one minute get your camera become a wireless camera. Wireless 2.4GHz transmitter/receiver set (12-Volt for vehicle installation). Work range: up to about 10m(Hollowness). Fit all RCA composite video connections. Power: DC 12V/24V. Transmitter/Receiver cable length:1.5m How to Install a Camera with the Wireless Module: Take out your stock license plate light at the back of your car. Fix the camera to where the stock license plate light was. Connect the built-in license plate light of the camera to where the stock license plate light was connected to get the power. Connect the wireless module (transmitter) to your camera via the two cables - yellow plug for AV output and black plug for power. Connect the wireless module (transmitter) to the reverse light of your car to get the power - red wire for positive and black wire for negative. Connect the wireless Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.