Features 1、Multi Function: GPS satellite vehicle speed, altitude measurement display function, latitude and longitude measurement display function, compass display, satellite time display, speeding alarm function. 2、Fatigue Driving Alarm: The smart HUD display will alarm when driving for 4 hours continuously, making your driving safer, greatly make sure your security. 3、LCD Screen: High definition LCD screen display with higher resolution. The light source sensor is used to automatically adjust the screen brightness to protect human eyes. 4、High Performance: Pass the vehicle roll angle test and tilt angle test. Designed for carbon fiber style body , start with the car, stop automatically dormant. 5、High Sensitivity: Using free rotation, equipped with high precision dual channel satellite GPS signal module, fully automatic detection of vehicle driving conditions. Specification Item Type: HUD Display Material: ABS + PC Power Supply: 10V-30V Working Temperature: -40℃ to +80℃ Speed Accuracy: <0.36Km/h GPS Cold Start Time: 32s (average) GPS Hot Start Time: 1s (average) Application: Universal Package List 1 x Host 1 x Cigarette Lighter Cable 1 x ACC Power Cord 1 x Manual 1 x Anti-Slip Mat