7 inch analog signal wireless reversing camera for truck bus trailer 7 inch bus tv monitor is specially installed on bus,truck,trailer and any heavy-duty vehicles,coach for car safety vision,The car monitor is brand new digital 7" panel, eay to install---no need run wire from the front of the car to rear, it is wireless transmission and receiver, power by ACC. backup camera with 2 AV inputs,V2 to parking priority,V1 to dvd/vcd, 18 pcs infrared LED light, keep your car safety in dark night. Parameter: