【High-Definition Display】 The display screen is incredibly clear! Vehicle data is displayed in real-time. In addition to automatic brightness adjustment via a light-sensing sensor, manual brightness adjustment is also supported, providing a screen that's easy to see day or night. 【Equipped with an Alarm Function to Support Safe Driving】 The device alerts you with an alarm when parameters such as low battery voltage, overheating, speeding, or fatigue driving exceed the set values. Of course, the set values can be customized! It provides excellent support for safe driving! Body Size: Approximately 97 x 104 x 92mm ●Notes ※ While OBD2 is compatible with many vehicles, it is not compatible with some. Returns are not accepted if it does not work with OBD2. If it is not compatible, please use the GPS mode. ※ We are unable to answer specific questions regarding compatible vehicle models. Operating Voltage: 11V〜18Vdc (12Vdc/200mA) HUD unit x 1 OBD cable x 1 Non-slip mat x 1 English instruction manual x 1