Features: 1.Universal Application: Rearview camera control box is compatible with various vehicles, including school buses, buses, tank trucks, engineering vehicles, large trucks, boats, coaches, yachts, and more. 2.4 Channel Video Converter: Vehicle video splitter supports up to 4 channels of audio input and 1 audio output, providing you with options to choose the display mode. 3.Support Information Overlay: The camera video screen switch system allows for overlaying license plate numbers, time, driving information, and other characters. 4.Multi Protections: Video splitter operates on a DC12V wide voltage input and incorporates multiple protections, including overload protection, short circuit protection, and reverse connection protection. 5.Simple Operation: The video converter device offers easy on, off, and delayed functionalities, and enables automatic full screen display of left turn, right turn, and reverse camera views. Specification: Item Type: 4 Channel Video Splitter Material: ABS + Metal Remote Control Battery: 1 button battery CR2025 3V (not included battery) Video Format: PAL/NTSC Resolution: 720 x 480 60Hz for NTSC 720 x 576 50Hz for PAL Video Interface: Operation screen mode: remote control or host button Default boot screen: default boot, 4 screen mode, selectable in the menu Screen mode: four screen, three screen, two screen, one screen Rated voltage: DC 12V Video signal input: 4 channels Operation method: remote control or host button Power loss protection: yes Main functions: 1. High resolution picture quality. 2. NTSC PAL dual video format. 3. Chinese and English language menus. 4. Channel image quality is adjusted independently. 5. Screen automatic switching function. 6. Two PIP functions, one PIP display position is adjustable, and the channel is adjustable. 7. Two screen function, the position of the display screen is adjustable, and the channel is adjustable. 8. ZOOM electronic amplification function, you can choose any amplification area. 9. Screen freezing function, support the function of freezing multiple channels at the same time under multi screen display. 10. Mobile reconnaissance alarm; screen loss alarm function. 11.60 sets of event records (mobile reconnaissance and screen loss alarm records). 12. The channel number can be edited arbitrarily. 13. The screen position can be adjusted and the alarm time can be set. 14. Support infrared remote control operation. Applicable: Suitable for school buses, buses, tank trucks, engineering vehicles, large trucks, boats, coaches, yachts, etc.