Product introduction: This is a car reflective head up display. The product receives signals, connects to your car, and displays your car and driving data on the screen. You can view the data without looking down. It updates the data in real time according to your driving situation, and the data is accurate. System and function: This product is a GPS series car head-up display, suitable for all cars, with a built-in GPS chip. It works by connecting the car and accepting the satellite signal, once the product receives the satellite signal, it will start working and display your car data. It displays many functions, such as: vehicle speed, driving direction, satellite count, fatigue driving reminder, speed reminder. Accessories: A machine, a USB cable, a piece of reflective film, a manual, a double-sided tape. Installation method: First, stick the product with double-sided tape, put the side with the button on your windshield, peel off the plastic film from the sticky tape double-sided and stick it on your windshield, connect the car, after the signal is searched, your car data will be projected on the reflective film. You can also choose not to stick the reflective film and reflect the product data directly on your car windshield.