M7 3.5 inch Universal Car OBD2 + GPS HUD Vehicle-mounted Head Up Display Fuel Consumption, M7

1. Easy to operate.
2. Easy to install, play and plug.
3. Overspeed, low voltage, high water temperature will alarm. (bibibi)
4. There are 2 display systems, one is GPS mode, it is suitable for all models, and the other is OBD mode.
5. Weight: 75g; size: 90x53x26mm