Customer Service?We provide detailed instructions;the product has a 2 year warranty; we provide tech support and replacement service for each rv wireless back up camera . Easy for Installation?Bluetooth backup camera with HD 1080P Touch monitor can be mount on the windshield by the windshield mount. Monitor of vehicle backup camera system is directly powered from the cigarette lighter socket or ACC we provide a charger adapter for in package for cigarette lighter. Touch Button & HD 1080P 7” Monitor?Image of trailer camera is super clear and any distortion is reduced to a minimum. Image of trailer backup camera system could be fliped between mirror(rear view) and facing(front view), backup lines optional to turns on/off. Also, the design of touch button is more convenient for you. 4 Video Channels?Backup camera wireless system has Split screen ability with 4 way video input, which can add up to 4 digital wireless RV/License plate camera to the current monitor. IP69K Waterproof Camera viewing angle 150 degrees. Latest Digital Signal?Upgraded Wireless RV Camera with Unique digital signal dedicated antenna, power, transmission distance, stability, durability are improved by at least 50%. RV backup camera system can send 1080P videos to the display via the stronger signal. Signal can reach 360ft in open area and 320 ft in vehicles.