Features 1. GPS mode function: Car head up display, windshield GPS mode function: Vehicle speed, satellite signal, driving direction, overspeed warning, fatigue driving reminder. 2. Instructions for use: This product is easy to install and plug and play. Simply connect the car to the product using the USB cable provided with the product, start the engine, and power it on for use. When you notice the small icon on the product constantly flashing, it indicates that the product is collecting satellites, and the vehicle speed will only be displayed when the device searches for satellites. 3. Applicable to all cars: Collect vehicle speed from GPS satellites. Not related to car engines, applicable to all vehicles on the market. 4. Attention: Please pay attention to the following three important information: Search speed will be affected in garages, overpasses, and dense buildings. When installing the same GPS device in your car, it will also affect the search speed of this product, that is, two GPS devices cannot be placed together. When your car has a metal film, it will also affect the search speed of this product. 5. Large font size, high-definition experience: The front adopts metal nanotechnology to eliminate unnecessary reflections and make the image display clearer. Equipped with a built-in light shield and integrated shading design, the more thoughtful design covers the brightness of the display screen, making night driving less dazzling. Specification Material: ABS Color: Black Size: 14 x 9 x 5 cm Weight: 140 g Package Include: 1X Host 1X Car charging cable 1X 3m adhesive 1X Reflective film 1X Instruction manual