Features: Function: vehicle speed, driving time, altitudes, time, mileage, voltage display, number of satellites, acceleration test, brake test, uphills and downhill angles, left and right inclination angles. USB power supply, 0 power consumption after turningoff the flame. Use it with confidence. Simple installation, plug and play, Fashion appearance, like decorations, increase the grade of car. Suitable for all models, car, trucks, pickups, buses, new energy vehicles, can be used. Specifications: Material:ABS Size:Approx.65.5mm/2.58'x63mm/2.48' Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Head Up Display