[Dual Interface]: The rearview mirror has dual interface design, Av1 video interface, can be used as a car DVD or set-top box display; av2 video interface, can be connected to a reversing camera. [HD 800 x 480 Display]: MP5 Car Monitor - 7 inch display with external DVD or car TV. The display is softer and the image contrasts. [Easy to Use]: Wide voltage setting, car DC9V - DC26V can be used directly, no power inverter, easy to install for car rearview mirror accessories Wide range of applications, suitable for all kinds of vehicles, reversing the auto automatically. [Protection Function]: There is short circuit protection, the wrong positive and negative poles will not burn the machine, just connect the positive and negative poles again to use it normally. [Convenience]: Rearview mirror eliminates the limitation of the reverse priority line, video 2 supports reverse priority function, as long as video 2 is connected to the camera, the screen will automatically jump when reversing.