OBDHUD G5 GPS Hud Digital Speedometer Head Up Display Car Smart Gadgets Auto Electronic Acceories For All Car Display functions: 1. Decorative icon 2. Multifunctional display area 3. Compa: W (West) 4. Satellite icon 5. Compa angle 6. Compa: N (North) 7. Speed unit: KM/H (kilometers) MPH (miles) 8. Compa: E (East) 9. Driving mileage 10. Fatigue driving alarm 11.Compa: S (South) HEAD UP DISPLAY-GPS GPS speedometer Head-up Display For All Cars The speed is always displayed in front of you to avoid speeding fines.Speed, compa, fatigue driving reminder 5V USB Cable For Car Connect the cigarette lighter Fits all cars Fatigue driving reminder When driving fatigued, look down at the vehicle information. For example, at a speed of 60km/h, bowing your head for 1 second is equivalent to driving blindly for 16 meters.There are certain security risks! The HUD meter can be installed directly in front of the driver without having to look down for information. Effectively improve driving safety! Multiple mode switching 1.Vehicle speed 2.Number ofSatellites + Compa 3.Vehicle speed + Unit + Compa 4.Mileage + Compa 5.Compa angle +Compa Simple function and compact appearance Speed/Driving mileage /Compa angle /Automatic lightsensitivity/Satellite icon/Mile andkilometer switch/Sound alarmswitch/Over speed alarm/Fatigue drivingalarm /Automatic poweron and off Driven Distance GPS COMPASS It can take you out of the desert Place firmlyon the car it's strong 1.Short pre in:confirm the option after entering the setting menu 2.long pre in:enter the setting, after adjusting, pre vertically for 2 seconds to save and exit 3.Push left:Switch display mode, move options after entering setting 4.Long push left:push left for 2 seconds to turn off the buzzer alarm,do it again to turn on 5.Push right:switch between concise mode and standard mode, move option after entering setting FAQ: 1.How to use? Use USB cable to connect car cigarette lighter interface 2.The screen without any display, and no power Check whether the USB cable is damaged, replace the USB cable for testing, and prohibit the use of voltage higher than 5V for power supply 3.Without car speed After HUD power-on, the satellite icon flashes will start to find the satellite. Please driving the car to the road. It will work after it stops flashing 4.Inaccurate speed a.First check the speed unit is correct or not, the speed unit including KM/H and MPH,please refer to the setting to switch the unit. b.The car manufacturers usually make the dashboard speed 5-7% higher than the ECU. The international standard is based on satellite data. (if the dashboard shows 100,and the device shows the 105,change the default value at 102) 5.Driving direction display error After the vehicle speed exceeds 5KM / H, the direction can be displayed normally. 6.Speed is still displayed after the car stops Under the underground parking lot, tunnel, under the overpa, there will be unstable satellite drift when there is obstruction. 7.Turn off the buzzer Push leftfor 2 seconds to turn off the buzzer, do it again to turn on.