【🚩🚩🚩Key Information Display】- Head-up display the speed, Display MPH or KM/h, Driving Time, Altitude, Distance Calculate and Display,( ⏰⏰⏰ Car Clock) Automatically Identify Time Zone, Accurate GPS Local Time Display,let you know the real-time key information for your trip; 【🔔🔔🔔Safe Alarm】- Overspeed Alarm & Fatigue Driving Alarm to ensure your safe in long distance driving.(The details pls refer to below "Product Description Section") 【⭐⭐⭐Green Light & 5.4in Large Display Screen】- 5.4in Large Screen & Green light display will protect eyes of driver, let driver feel more comfortable, especially for long distance driving. 【📡📡📡Plug & Play】- This HUD calculate & display real-time speed via GPS. No Need professional installation, No wiring needed to the VSS (vehicle speed signal). With 5V output voltage USB cable, compatible with all cars & trucks; 【📌📌📌Non-skidding】- With a rotatable holder & strong sticker stand, can fix HUD to your car console or windshield, prevent the HUD from skidding.