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 sound input and 1 sound output, providing you with options to choose the display mode. 3.Information Overlay Support: The 4 channel backup camera system supports overlay of license plate numbers, time, driving information, and other characters, providing more convenience for your use. 4.Advanced Protection: The video splitter features safe RCA head interface, DC12V 24V wide voltage input, 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 SplitterMaterial: ABS + MetalDriving Playback: GPS Driving Track Computer Software PlaybackVideo System: PAL NTSC (Automatic Identification, Note: Need To Connect The Camera Before Power On, The Default Is PAL)Video Interface: 4 Way Input (Aviation Head Interface), 1 Way Output (Aviation Head Interface)Positive Mirror Image Selection: OFF ONDefault Power On Screen: Default Power On Four Screen Mode, Menu SelectableScreen Mode: 4 Screen, 3 Screen, 2 Screen, 1 ScreenResolution: Support 1080P, 720P, D1, CIF, Etc.Camera Input: 4 WayOperation Method: Remote ControlRemote Control Battery: Dry Cell AAA x 2 (not included)Power Loss Protection: YesVideo Interface: Aviation Head InterfaceUSB Backup: SupportMemory Maximum Support: 512GDelay shutdown: independent delay shutdown circuit, can support the system to continue to run after the vehicle is turned off, the delay time can be set by yourself.Peripheral support: Support 1 group RS232, can connect ID card reader, fuel sensor, temperature sensor and other peripherals.Software Upgrade: Support software upgrade via storage card and USB flash disk.Power protection: the video content has a power failure protection function, and the video is automatically restored when powered on.Video:Support multi way comparison playbackSupport alarm point search and time point searchApplicable:Suitable for school buses, buses, tank trucks, engineering vehicles, large trucks, boats, coaches, yachts, etc. Package List 1 x Main Unit3 x Cables1 x Remote Control1 x Key1 x GPS Note For software that requires downloading installation packages