Feature: 1. Wide Application: Rearview camera control box is suitable for school buses, buses, tank trucks, engineering vehicles, large trucks, boats, coaches, yachts, etc. 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 channel backup camera system supports license plate numbers, time, driving information and other characters overlay. 4. Safe and Reliable: The video splitter, DC12V 24V wide voltage input, has multiple protections, overload protection, short circuit protection and reverse connection protection. 5. Simple Operation: The host can be turned on, off and delayed, and supports full screen automatic display of left turn, right turn and reverse. Specification: Item Type: 4 Channel Video Splitter Material: ABS + Metal Video Format: PALVideo Parameters of Each Channel: Resolution 720x576, refresh rate 25 fpsVideo Interface: 4 way input (aviation head interface), 2 way output (aviation head interface and RCA) 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.. Package List: 1 x Video Splitter 1 x Image Control Box2 x Connection Line1 x Manual