OBD2 GPS Heads Up Display Car Electronics HUD suitable for all cars

Package list M3 obd2 Eobd: M3 HUD * 1 OBD Cable * 1 Reflective film * 1 User manual * 1 Sticker * M3 GPS For All Cars: M3 HUD * 1 USB Cable * 1 Reflective film * 1 User manual * 1 Sticker * 1   Product Functions OBD2 Version: Compatible for: Cars in OBD2 system When you're ready to place an order, but you don't know whether your car is compatible with the HUD, you can contact with us! We're glad to help you! GPS Version: Compatible all cars.   OBD2 Version It works when the car is running, and turn off when the car's ignition is off. OBD2 Display data: Speed, coolant temperature, voltage, mileage, clear faulty code. Alarms: over-speed alarm, high water temperature alarm, low voltage alarm, fault code alarm, fatigue driving alarm. Automatically turn on or off: After the engine is turned off for 30 seconds, the HUD will automatically shut down; when the engine is started, it will automatically display after 5 seconds. Our HUD with a swit