Universal Vehicle HUD Display UBS Interface Speedometer Overspeed Reminder Fatigue Driving Reminder for All Cars Car Accessories Feature:1. Compact and Portable:HUD Head Up Display compact body, no matter where it is placed, is clear and natural, without blocking any vision. 2. LED Screen with Automatic Adjustment: Vehicle HUD Display has HD LED to automatically adjust the screen brightness according to the current ambient light, bringing a comfortable visual experience. 3. Multi-functional Design: Car GPS Tachometer accurately displays the speed, adds the speed calibration function, and can be adjusted to be consistent with the display of the car dashboard. GPS precise positioning is not affected by the weather. Car Display has two alarm functions, which can set overspeed alarm and remind you of fatigue driving for 8 hours continuously. 4. Energy-saving:Time LCD Display is powered by USB, and completely powered off with the vehicle flameout, with zero power consumption. 5. Two Style Options: Mobile Heads UP Display with white light and green light. It is still visible in day or night.Specification:Origin: Mainland China Wire or Wireless: Wire Size: 52*52mm/2.0*2.0in Name: Car Head Up Display Material: ABS+PC Light color: white/green(optional) Screen size: 2.2 inch/5.5cm Screen type: LED Applicable model: general Function: speed, direction, time, number of stars searched Alarm: overspeed alarm, fatigue driving alarm Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. 1pc x HUD Head Up Display 1pc x USB cable 1pc x Sucker support 1pc x Double-sided adhesive tape 1pc x Instructions