A1 Car GPS Head Up Display Speedometer Kmh/MPH with Speeding Warning

HD LED display makes it easier to read, adjust brightness automatically for day and night driving. Moreover, it comes with a over speed alarm warning to ensure safe driving.
Compatible with All Cars , Vehicles and Trucks, Driving by GPS Signal, No wire needed to the VSS (Vehicle Speed Signal)
Plug and play, easy setup, you can charge through vehicle cigarette outlet jack
Over-speed alarm warning for safe driving.
High definition brightness LED display, easy to read
Display MPH or KM/h
Adjust brightness automatically for day and night driving
Comprehensive display: Vehicle speed, real time, over speed alarm, compass, auto sleeping mode, etc.
Specifications
Working voltage DC8-18V
Working current 40mA
sleeping current15mA
Speed range0-400KM
Real time precision The same as satellite
Satellite positioning time Cold start: 30s, hot start: 1s
12V car charger 1000mA USB cable 1m
Package Weight 300g
Product Size 9.9L x 9W x 2.3H cm
Package 1 x Head up Display, 1 x Manual