1. Reading the driving data is more concise and easy to understand. The LED bright color screen is used to resist glare, and the surface is blackened to filter out unnecessary reflections. 2. The mobile APP is connected with HUD Bluetooth, and the navigation information is projected synchronously, and the road conditions ahead are clear at a glance. 3. Accurate positioning through satellite, tunnel/toll station/gas station/railway entrance/speed limit reminder, intelligent evaluation of speed measurement distance and speed per hour according to different roads on which vehicles are traveling. 4. Adopt the cigarette lighter plug buckle for power supply, plug and play, convenient and fast. 5. Intelligent light perception, the screen brightness is automatically adjusted for the environment brightness. 6. Parameters: Dimensions: 131 x 85 x 14mm Ambient temperature: -20~85 degrees Celsius Input voltage: DC 10-35V Applicable models: all models 7. Function: vehicle speed/navigation (only Android can be used abroad)/driving direction/clock/fatigue driving reminder/satellite signal/driving time/driving mileage