Rearview Mirror Monitor, 9.1-inch, 12V/24V, Backup Camera Compatible, Truck Compatible [B391]

- The image display ratio can be changed to 25:9 (full screen), 23:9, 16:9, 4:3, or 1:1. - If the reverse connection wire is connected to the backup lamp, the image will automatically switch to the rearview camera image when reverse gear is engaged. - Two video inputs, AV1 and AV2, are available. Connectable to a wide range of devices, including car navigation systems, DVD players, OneSeg TVs, and backup cameras. - The monitor remembers the state before the engine was turned off when it starts up. If the engine is turned off while the monitor is on, it will automatically turn on the next time the engine is turned on. - Can be attached to rearview mirrors up to 45-60mm in height (may not be compatible with some rearview mirror shapes)