Wide Application: 4 channel video splitter is suitable for school buses, buses, tank trucks, engineering vehicles, large trucks, boats, coaches, yachts, etc., to meet your various demands. | Easy to Operate: The host can be turned on, off and delayed and support to add full screen automatic display of left turn, right turn and reverse. | 4 Channel Video Splitter: The vehicle video splitter supports 4 channels of audio input, and supports 1 audio output, you can choose the display mode. | Support Information Overlay: The 4 ch backup camera system supports license plate numbers, time, driving information and other characters overlay. It is more convenient for you to use. | Multi Protection: The video splitter has safe head interface, DC12V 24V wide voltage input, with overload protection, short circuit protection and reverse connection protection.