RYSJM | G22 Car GPS On-board Computer Head Up Display For HUD KMH MPH Speed Meter With Alarm Function Compass For All Cars Gauge

G22 Car GPS On-board Computer Head Up Display For HUD KMH MPH Speed Meter With Alarm Function Compass For All Cars Gauge Features:-Plug & Play, after connect power supply, it will work directly, no need any operation.-Large font, clearly visible both during the day and at night.-Speed unit KMH and MPH are available, and the unit can be switched freely.-Innovative design, good review even under sun.-Wide application, it can work on all cars, trucks, buses.-The speed data of the device is collected by satellite, and speed is collected from satellites. So if tested at home or parking lot, perhaps speed can't display correctly. Please test it on the car outside with good signal.Package Included:1x Head Up Display