This 4 camera RV Trailer system with a 7-inch split screen allows you to see everything behind and around you continuously while you driving or when parked. The 7-inch split screen has different viewing modes and is compatible with all TadiBrothers cameras wired or wireless. This bundle includes the screen and 4 RV Cameras. This RV system includes everything you need for for a clean installation, featuring easy to follow instructions and diagrams.