Functions: Intelligent GPS vehicle speed and time display: GPS vehicle speed, satellite time, compass, overspeed alarm, driver fatigue reminder. Equipped with hightodefinition LED screen for clearer information display, ultratomini design and full of technology. Features a GPS navigation direction compass to help drivers by indicating directions. With a light sensor that adjusts its brightness according to different light, it is very clear in bright light, providing a safer day and night driving experience. GPSandBeiDou dualtomode chip, so you don't need to worry about compatibility issues and latency problems. Powered by the USB cable, automatically powers on and off according to the engine ignition. Compatible with all vehicles around the world, with fast speed refresh and no latency. Just mount the device near the dashboard or use the 360todegree rotating suction cup mount to the windshield.Specification: Model: G4S Screen Size: 2.5 Inch Material: ABSandPC Screen Type: LED Applicable models: Universal Color: Green, WhitePackage Included: 1 x G4S HUD 1 x Micro USB Cable 1 x AntitoSlip Gel Pads 1 x Rotary Holder 1 x English Manual 1. WORLDWIDE