Features: 1.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. 2.4 Channel Video Splitter: The vehicle video splitter supports 4 channels of audio input, and supports 1 audio output, you can choose the display mode. 3.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. 4.Multi Protection: The video splitter has safe RCA head interface, DC12V 24V wide voltage input, with overload protection, short circuit protection and reverse connection protection. 5.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. Specification: Item Type: 4 Channel Video Splitter Material: ABS + Metal Video Format: PAL, NTSC (automatic identification, note: the camera needs to be connected before power on, the default is PAL) Video Interface: 4 way input (aviation head interface), 1 way output (aviation head interface) Operation Screen Mode: Wire Control: High Level Trigger Positive Mirror Image Selection: OFF and ON Default Boot Screen: Default Boot Four Screen Mode, Selectable From The Menu Picture Mode: Four Pictures, Three Pictures, Two Pictures and One Picture Rated Voltage: DC 12V, 24V Camera Input: 4 Channels Operation Method: Remote Control Power Loss Protection: Yes Video Interface: Aviation Head Interface Application: Suitable for school buses, buses, tank trucks, engineering vehicles, large trucks, boats, coaches, yachts, etc.