OBD display information: driving speed, engine speed, fuel consumption, water temperature, voltage, driving distance, driving time, manual/automatic brightness adjustment, public mile switching Alarm: overspeed alarm, water temperature alarm, low voltage alarm, shift reminder, fatigue driving reminder, detection of fault code, elimination of fault code, GPS display information: travel speed, local time display, driving direction, driving distance, driving time, public mile switching, voltage, altitude, automatic sensitization, satellite signal display, overspeed alarm. Alarm: overspeed alarm, low voltage alarm package: 1 x S7 Head Up Display 1 x Reflective Film 1 x OBD Cable 1 x Antiskid Pad 1 x English User Manual