Features: 1.Multi Functional: Displays a variety of functions including GPS speed, driving direction, over speed alarm, and more. Automatic switch between km/h and MPH for convenient control. 2.Automatic Light Adjust: Built in light sensing system, which could adjusts screen brightness for comfortable viewing experience during the day or night. 3.Driving Safety: Mounted on the dashboard, does not block your view for easy and safe driving. Displays speed and direction without having to look down while driving. 4.High Precision: The HUD speedometer gauge adopts GPS and for BeiDou dual mode chips, which could provide fast refresh speed and no delay while operating. 5.Non Destructive Installation: The package includes a pair of double sided tapes, which can firmly fix the gauge on the dashboard, easy for installation and disassembly. Specification: Item Type: GPS Speedometer_x000D_ Material: ABS, metal_x000D_ Voltage: DC 5V_x000D_ Functions:_x000D_ Speed_x000D_ Time_x000D_ Driving distance_x000D_ _x000D_ Single travel distance _x000D_ Single travel time _x000D_ Number of satellites_x000D_ _x000D_ 100 km accelerator time _x000D_ Driving direction angle_x000D_ Speed alarm _x000D_ Fatigue driving reminder _x000D_ Mile Kilometer switching _x000D_ Automatically adjusted brightness