1.Plug and play: After connecting to the power supply, the top display of the car can work directly without any other operations.
2.Note: This device is a GPS digital speedometer, and the speed is collected from satellites. So, if you test this at home or in the parking lot, the speed may not be displayed correctly. Please do the test outside the vehicle with a good signal.
3.Widely used: built-in GPS+BEIDOU chip, car head display is suitable for all cars, buses, trucks, bicycles and scooters.
