Product Features: 1. WiiYii CAR 100% Brand Guarantee 2. With Mirror Projecting, Display Data is more shine and clearly: 6 different Display modes 3. Safty driving, Keep your eyes ahead, No need to down your head to see Dashboard while driving 4. Easy to Install, Only need connect the HUD with Car OBD port by OBD cable, HUD will display when car engine on / off 5. Over-time driving Alarm, Low Voltage Alarm, Over-speed Alarm, High temperature Alarm, Engine faulty Alarm 6. KMH & MPH Switch Freely. 7. Compatiable for: Cars in OBD II Standard (after 2007 years) 8. Installation position: On Center Console 9. Connection: Connect with Car OBD port 10. Display information: Speed, engine RPM,water temperature, driving distance,battery voltage, Turbine Pressure / intake pressure, Faulty Code Read... OBD mode function: vehicle speed, water temperature, voltage, fuel consumption, speed, single mileage, total mileage, travel time, direction of travel, number of stars searched, altitude, time, intake pressure, oil temperature, air-fuel ratio, turbo pressure, intake pressure, acceleration test, brake test, clear fault code, read data stream Alarm: overspeed alarm, speed alarm, water temperature alarm, voltage alarm GPS mode functions: vehicle speed, voltage, satellite time, altitude, number of satellites, driving direction, single mileage, driving time, acceleration test, brake test Alarm: overspeed alarm, low voltage alarm Navigation method: need to download WiiYii APP software, HUD and smart phone for Bluetooth wireless connection, the navigation information will be displayed synchronously through APP Package List: 1X HUD 1X OBD Cable (1.8m) 1X Non-slip Mat