Features: 1. Plug & Play: After connecting to the power supply, the car HUD head-up display works directly without additional operations. Provides smooth and continuous display without skipped speed readings. 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 outdoors with clear sky visibility. 4. Widely Compatible: Built-in GPS chip makes this car HUD head-up display suitable for 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: Light reflection and differences in display settings may cause slight variations between the product color in images and the actual item. Measurement may vary by +/- 1-3 cm.