G15 Car HD GPS Head-Up Display with Color Changing Ambient Light 1. Car universal, non-destructive installation, suitable for all models on the market 2. Small body, suitable for placement in any corner, without blocking any line of sight 3. Adopt car USB or cigarette lighter USB power supply, turn off the flame and completely cut off the power supply, there is no electricity stealing phenomenon 4. Using 10 Hz high refresh rate GPS + Beidou dual-mode chip, the refresh rate is fast and the speed is not stuck 5. The color of the ambient light can be switched freely (blue, light green, green, cyan, purple) 6. The built-in light sensing system can automatically adjust the screen brightness according to the current light brightness, bringing a comfortable visual experience 7. Display information: vehicle speedtimenumber of satellitestravel distancetravel time 8. Alarm function: speeding alarmfatigue driving