Feature: 1. custom smart chip, real-time synchronization with central control date. 2. air computer, safe driving, original car data, non-destructive installation, the air outlet can be moved at will, After installation, elevate the visible vehicle condition, without frequent viewing of the central control screen, to avoid accidents. 3. Energy saving, automatic shutdown after flameout (starting and closing with the central control, automatic shutdown). Multifunction: [Speed display]: Real-time update of vehicle speed to avoid violations; [Gear display]: Real-time update of the gear position of the vehicle; [Turn signal display]: Update the left and right turn signals of the vehicle in real time to avoid making mistakes; [The door display]: Real-time update of door switches to avoid accidents; [ display]: Update the light switch in real time to avoid long-term exposure to the vehicle in front; [Parking display]: Real-time updates of vehicle parking conditions. For Car: For Model 3/Y : ABS colour: black Package Contents: 1 x Head-up display 1 x Wire Harness 1 x Installation tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.