1、OBD Mode Display Information: speed, rotation rate, fuel consumption, water temperature, battery voltage, mileage, travel time, local time, altitude, driving direction, latitude and longitude, 100 km acceleration test. 2、Alarm Function: overspeed alarm (single segment / four segment alarm) speed alarm shift reminder water temperature too high, alarm voltage too low, alarm fatigue driving reminder engine fault, alarm clear fault code, public mile free switch. 3、Stereo Imaging: using a translucent semi-reflective lens to suspend the information stereoscopic display in the air. No reflection, zero ghosting, clearer daytime display. 4、Easy to install. 5、Made of high quality materials, it has a long service life. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.