1 Multi-Functions area: RPM,driving mileage,voltage,water temperature,fuel consumption,driving time2 RPM Icon:the bright icon means the engine RPM value3 Light sensor: Automatically adjust the brightness according to the environment 4 Power button5 Setting button6 USB port7 Speed in number8 Speed unit: KM/H and MPH9 Icon for Voltage,Water temperature,buzzer,setting 10 Unit icon: L/H(Liter/Hour) L/100KM,MIN(Driving time) Trip(Driving mileage) RPM 14 Main functionsSimultaneous projection to keep your eyes always on road,help safer drivingSpeed, speed, water tank temperature, voltage, fuel consumption, mileage, speed alarm, speed alarm, voltage alarm, water temperature alarm, four-stage vehicle speed alarm, fatigue driving reminder, clear fault code, km/mile switch, automatic photosensitive System default value for Alarms 3 Different Fuel consumption auto switch, display along with the car status3 Different Fuel consumptionauto change the brightnessIt also can turn on or off by manual,if you wonnot use your car for a long time,please turn off the power. auto change the brightnessIt can adjust the HUD brightness according to the environment by automatic or manual Anti-high temperature New PC MaterialThe HUD is still running even if it reached the maximum temperature in the car at summer time. Select Mode1. OBD mode almost 80% of cars before 2008 can"'"t work properly2. The OBD mode cannot work normally on most gasoline-electric hybrid vehicles (hybrid vehicles), Pickup, and Mini Bus...Nor can it be used in some old diesel powered cars, SUVs, ORVs...If you are not sure, please