Features: brand new and high quality Simple high-definition, multi-functional HUD, can display 200+ vehicle speed. Large fonts, high-definition experience, metal nanotechnology is used on the front to eliminate unnecessary reflections and make the picture display clearer. Five alarm functions: alarm for overspeed, water temperature, speed, voltage, and reminder of fatigue driving. Integrated shading design, shielding the display screen brightness, fully automatic light-sensing, self-adaptive brightness adjustment. Clear enough during the day and not dazzling when driving at night. Brand-new imported low-power chips, non-destructive standby completely solve the problem of high power consumption, intelligent switch machine, start and shut down with the car. Specifications: Material: ABS Size:Approx.3.7x8.6x1.6cm/1.46x3.39x0.63inches Color:Green/White/Yellow Model: M5 Function: speed per hour, speed, water temperature, voltage, fuel consumption, for time, mileage, driving for time, 100 kilometers acceleration test Alarm: overspeed alarm, low voltage alarm, high water temperature alarm, fatigue driving alarm, engine failure alarm Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Host 1x OBD Cable 1x Non-slip Double-sided Sticker 1x Reflective Film 1x Manual