Eaglerich 2.4G Wireless AV Cable Transmitter and Receiver for Bus Car Video Monitor Truck Reversing Rear View Backup Camera 200m Range 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 50m(Hollowness) Connects to rear-view camera and front video screen Fit all RCA composite video connections