Please be noted, this is CVBS signal, compatible market CVBS (RCA input port) monitor. Vehicle Compatibility: Power supply 9-36V DC; for all kinds of vehicles, such as RV, Truck, Trailer,. Intelligent Camera: 4 AHD 1080P Horizontal 180° wide angle camera, Potosensitive, Super night vision without light, Shockproof, Waterproof. 4 ultra wide cameras provide a complete view around vehicle. System stitches views together to simulate a bird's eye view of vehicle. When the vehicle start on, the system will auto record. Quad-core CPU: Supports 4-CH 1080P DVR recording, MP4 format, The video saved in the USB disk, Support playback on Local, PC,TV, Mobile ect. Loop record, Support Max 64GB (2.0)usb disk. the record Video resolution is 2560*1440; When the truck ACC ON, the system will auto record of 4 ch cameras. With our Top view 360 degrees camera solution you always have and in one instant(!) fully top view camera overview around the vehicle, so no more dead corners and always a quick full overview for optimal safety! by preventing accidents and thereby damage and stoppage, the addition of a top view camera system also increases efficiency.