1、Versatile: 4 channel video splitter can be used in a variety of settings, perfect for school buses, buses, tank trucks, engineering vehicles, large trucks, boats, coaches, yachts, etc.. 2、4 Channel Video Input: The car video splitter supports 4 video inputs and 1 video output video output and display mode can be selected. 3、Information Overlay: 4 channel backup camera system supports character overlay of license plate number, time, driving information, etc., which makes it easier for you to use the system. 4、Safety Protection: The video splitter has DC12V 24V wide voltage input, overload protection, short circuit protection and reverse connection protection. 5、Easy to Operate: The host can be turned on, shut down, delay shutdown, support to add full screen automatic display during left and right turns, and reversing.