Description:Product Features:1. WiiYii CAR 100% Brand Guarantee2. With mirror projection, the display data is more brilliant and clear: 6 different display modes3. Safe driving, keep your eyes open, you don't need to lower your head to see the dashboard while driving4. Easy to install, you just need to connect the HUD to the car's OBD port via OBD cable, the HUD will be displayed when the car engine is turned on/off5. Overtime driving alarm, low voltage alarm, overspeed alarm, high temperature alarm, engine fault alarm6. KMH & MPH switch freely7. Compatible for: Vehicles in OBD II standard (after 2007 years)8. Installation Position: On the center console9. Connection: Connect to the car OBD port10. Display information: Speed, engine speed, water temperature, driving distance, battery voltage, turbine pressure / intake pressure, faulty code read... Specification: - Driving speed (km / mile), overspeed alarm - Engine speed, RPM alarm - Battery voltage, low voltage alarm - Water temperature (C or F), high water temperature alarm - Mileage - Clear the fault code manually or adjust the brightness automatically