Wide Application can work on all cars / trucks / buses / E-scooters / E-bikes.. Plug & Play After connect power supply, it will work directly, no need any other operation; Innovative Design- Future-oriented Robot Design brings smart life; Gesture Recognition Switch 5 different display interfaces by gesture directly, no need to press button manually; GPS+Beidou Dual Chips-- Speed is very accurate, and the speed is refreshed quickly without any delay; Display Content-- Speed, Clock, Single Driving Distance, Compass and Altitude; Large Font-Clearly visible both during the day and at night; Speed Unit- KM/H and MPH version can be changed manually; Notice- The Device is GPS Digital Speedometer, and speed is collected from satellites. So if tested at home or parking lot, perhaps speed can't display correctly. Please test it on the car outside with good signal;