Car Digital GPS Speedometer HUD Head up Display Electronics Speed Alarm Vehicle Speed Compass Speed Gauge Plug and Play Gadgets For All Cars MPH KMH

Three Styles of Interfaces free to Switch., A variety of Display Modes to meet the daily traffic requirements., Overspeed Alarm Function, The device flashes automatically when the speed exceeds a preset maximum speed., Simple Design with HD Large Font which displays speed clearly., GPS + BDS Global Positioning System., Dual-mode chip is more reliable, high-precision, high refresh rate built-in GPS and beidou Chip Module, up to 32 satellites can be received., Plug and Play, Easy to Install., Fear not the loss of battery power! No broken wire,no drilling, no OBD power supply for USB connection no standby current., The sensor is configured to automatically adjust the brightness of the display according to the intensity of external light to make it clearly visible under strong light., Suitable for all cars with USB port. H2 device adopts GPS and Beidou (BDS) dual-mode chip, it can be used as long as there is satellite signal.