1Multi Input Functionality: Equipped with four video inputs covering left, right, rear and front views. Each video input set is powered by DC+12V for the camera. 2Single Video Output: Outputs through a single video channel, triggering the screen's power line. Ensures precision control with its wireless remote and MCU intelligent circuit detection. 3Power Protection: Designed with a power protection circuit that safeguards both the camera and vehicle circuit. Broad voltage power input: DC8V16V; large truck DC24V converted to 12V power supply. 4High Performance: The 4 to 1 smart 360 degree panorama switcher adds more video inputs for the camera when connected to different video interfaces of various vehicle models. 5Easy Installation: It is a DIY solution for customers who find installation straightforward. Equipped with a decoder and utilized DVD or vehicle display to solve blind spots on the vehicle.