Features: 1. Plug & Play: After connecting to the power supply, the car HUD head-up display works directly without additional operations. Provides a smooth and continuous display without skipped speeds. 2. Innovative Design: Equipped with a built-in sunshade, ensuring clear visibility even in direct sunlight. Large font display is clearly readable during both day and night. 3. Note: This device is a GPS digital speedometer that collects speed data from satellites. In areas with poor signal, such as underground parking lots, speed display may be inaccurate. For best results, test the device outdoors with clear sky visibility. 4. Widely Used: Built-in GPS chip makes the car HUD head-up display compatible with various vehicles, including cars, buses, trucks, bicycles, and scooters. Material: ABS+PC Color: Black Package Contents: 1 x GPS Speedometer 1 x USB Cable 1 x English Manual Note: The package includes only the items listed above. Other accessories are not included. Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.