Feature:1. GPS HUD: Real time acquisition GPS satellite speed measurement, high accuracy, GPS HUD has the same operating logic as speed radar.2. Universal Fitment: HUD gauge compatible with all vehicles, cars, motorcycles, ships, trains, etc. Universal fit for all vehicle models.3. High Quality Screen: Vertical display, projected car speed on the windshield, independent display as a video display, green light display, 4.5in screen.4. Speed Alarm: Default setting is 120km/h or 120MPH. Just press "up" or "down" to adjust. When the speed alarm is active, beeps three times to alert the driver.5. Easy Installation: No professional installation and no wiring, easy to install and convenient for using, save your time and energy.Specification:Item Type: Car HUDMaterial: PCandABSColor: BlackFunction Display: GPS satellite speed measurement or altitude display or total driving distance or single driving distance or single driving time2 Alarm: Speed alarm, fatigue driving alarmOther Function: Mile kilometre switchPower Supply: USB power supplyApplication Range: Suitable for all car models.Package List:1 x Car HUD1 x Stand1 x USB Cable2 x Sticker1 x User Manual