Best Friend for:Skid Steer RV Truck Trailer Class A Box truck semi truck Travel Trailer Horse Trailer Bus School Bus heavy duty Camper Tractor, the 5th Wheel,Motor homes.Wide voltage power input:12-36V DC Power. Touchable 10.36 inch 4K Monitor:Wide 10.36 inch Screen,so we can observe 100% road situation.Larger screen,safer driving.Help us to get a backup view.You can also install the camera anywhre you need a view.You can drive confiedntly. Work Well on large vehicles, such as street sweeper trucks,skid steers,buses, box trucks, pickup trucks, garbage trucks, flatbed trucks, dump trucks, refrigerator trucks, motor homes, vans, farm tractors, combines, cotton pickers, crop sprayers, bulldozers, snow plows, forklifts, excavators, heavy equipments,etc. Built-in DVR Record Video Audio Included.Included 128GB Memory card:The monitor has a built in mic and built-in speakers so that not only visual but even aural information.Advanced DVR function with loop recording.It support 12