2 mins review on M11 Car HUD

Amazon link: Dual SYSTEM DISPLAY: You can choose OBD system display, you can also switch to full compatible GOS system display. One button swithcing. OBD FUNCTIONS: Real data display of the car Free from outside interference. OBD/GPS display in obd mode:Driving speed, engine RPM, Instant Voltage, Water temperature, Driving distance, Automatic light sensing brightness adjustment, Alarm sound switch, Kilometer miles switching, Fahrenheit celsius switch Automatic switch GPS FUNCTIONS: Precise positioning, Real-time Synchronization display data, satellite data acquisition is not affected by the weather. Display in GPS mode:Driving speed, Voltage, Alarmsound switch, Driving icon,Satellites number, Voltage alarm, Automatic light sensing brightness adjustment, 4-segment alarm setting. mileage measurement. BIG SCREEN & CLEAR DISPLAY: This HUD has a 3.5 inch big screen, full HD display. M11 Car HUD built-in a lens hood help you read the data clear and no double images. And a Light sensor helps head up display to adjust the brightness according to the environment automatically.