Certification:NONE Origin:Mainland China [MULTI-FUNCTIONS] This GPS speedometer HUD not only displays the vehicle's driving speed in time, but also displays the driving direction by compass, Single Driving Time, Single Driving mileage, Let you know the key informations for your trip. [TIMELY AND ACCURATE ]Speed and compass data is from satellites, timely and accurate.In particular, the direction of the compass is not affected by the magnetic field. [MORE SAFETY]1. The shell is made of high temperature resistant material, which will not deform at 80 for 3 hours. 2. No built-in battery, no explosion ,at high temperature. [BIG AND GREEN COLOR FONTS] big screen size display make more easily and comfortable to read. Big and green color fonts, green light will let the driver more compfortable and protect the drivers' eyes, specially for long distance driving. [ALARM FUNCTION] Over-speed Alarm and fatigue driving alarm to ensure your safe trip. Default setting is 120KM/H or 120MPH. You can adjust it according to your needs. When the product detects speeding, it will beep to remind the driver. [UNIVERSAL FOR ALL VEHICLE]Collecting speed from GPS satellites. No relation with the car engine, therefore, it's 100% compatible for all vehicles include car, truck, pick-up, suv, scooter, train, motorcycle, bike, boat.. Material:plastic colour:Black Package Contents: 1 x Car HUD Head Up Display 1 x USB Cable 1 x Mount Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.