Features:
Multi function display:Current speed,Mileage,Driving direction,Automatic sensitization,Sound alarm,Speed Alarm,Fatigue driving reminder,Driving speed(KM/h or MPH).
precise positioning / real-time synchronous data display, satellite data acquisition, not affected by the weather.
2 major alarm functions to improve driving safety,Speed Alarm and Fatigue driving reminder.
Automatic p sensitive mode, automatically adjust the brightness of the display according to the intensity of external light to make it clearly visible under b light.
Automatic start-up and shutdown with vehicle start-up and shutdown.

Specifications:
Color:Green,White for optional
USB (5V) can be used.
package weight: 145g
package size:9x9x6cm

Package List:
1xHead Up Display
1xInstructions
1XNon-slip mat
1XUSB