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 with no speed skipping. 2. Innovative Design: Equipped with a built-in sunshade, the digital speedometer remains clearly visible even in direct sunlight. Large font ensures clear visibility during both day and night. 3. Note: This device is a GPS digital speedometer that receives speed data from satellites. In areas with poor signal, such as underground parking lots, speed may not display accurately. For best results, use the device outdoors with clear sky visibility. 4. Widely Compatible: Built-in GPS chip makes the car HUD head-up display suitable for 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 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.