WYING Y01 Digital Big Font Car LCD HUD GPS Head Up Display Slope meterSpeed Alarm Plug and Play KM/H MPH of All Cars Two-color display Options:Notice: White display will be darker under very strong sunshine, if you can"'"t accept, then please choose Green one:Product Highlights: 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; No Skip Speed No skip speed, more coherent and smooth display; GPS+Beidou Dual Chips-- Speed is very accurate, and the speed is refreshed quickly without any delay; Innovative Design- with sunshine hood itself, good review even under sun; Large Font-Clearly visible both during the day and at night; Speed Unit- KM/H and MPH version are available; 2 Colors- White and Green Display are available; 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; After-sale Service when you receive the order, please test it outside with good signal immediately. If it can"'"t perform properly, please write to us, and we will exchange a new unit or