Features: 1. Plug & Play: After connecting to the power supply, the car HUD head-up display works directly without additional operations. No skipped speed readings; provides a more coherent and smooth display. 2. Innovative Design: Equipped with a built-in sunshade, ensuring clear visibility even in direct sunlight. Features large, easy-to-read digits that are clearly visible during both day and night. 3. Note: This device is a GPS digital speedometer that collects speed data via satellite. In areas with poor signal, such as underground parking lots or enclosed spaces, speed may not display accurately. For best results, use outdoors with clear sky visibility. 4. Widely Compatible: Built-in GPS chip makes this car HUD head-up display suitable for use in 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: Light reflection and differences in display settings may cause slight variations between the color shown in the image and the actual product. Measurement may vary by +/- 1-3 cm.