Products Feature:1.【Visiblable】The small size of 1.8 inches avoids obstructing the driving sight; which displays the information more clearly than the windshield HUD, it may e you feel more comfortable to monitor the speed and bring more fun to your driving experience. You can choose between white and green,, it's a good view to read the information directly without moving your eyes from the road, no need to paste any reflecting sticker on your windshield.2.【Multe Functions】G5 contains multe functions: Speed ,Driven distance ,Driving direction ,Automatic light sensitivity ,mile and kilometer ,sound alarm Switch ,speeding alarm ,fatigue driving reminder. The speed unit is KM/H or MPH, and the driver can switch freely according to his own habits.3.【Alarm Function】Over-speed Alarm and fatigue driving alarm to ensure your safe trip. Default setting is 120KM/H or 120MPH. You can adjust it according to your needs. When the product detects speeding, it will beep to remind the driver.4.【Plug & Play】Power through vehicle arette . The G5 display the real and instance speed with Dual . Compatible with all cars ,no matter which brand or which model all over the world cause G5 is based on the Dual and BeiDou module inside.Warning: This product working voltage is 5V, and it is forbidden to use a voltage higher than 5V for power supply.Fitment:Works for all vehicles– Unlike other Car HUD's, you do not need to worry about the compatiblyCan work for ALL vehicles, no matter which brand or which model all over the world because G5 is based on the module inside.Display functions:1. Decorative icon2. Multifunctional display area3. Compa: W (West)4. icon5. Compa angle6. Compa: N (North)7. Speed unit: KM/H (kilometers) MPH (miles)8. Compa: E (East)9. Driving mileage10. Fatigue driving alarm11.Compa: S (South)Specification:Material:PC+ABSScreen type:LEDColor:Black(As Pictures Show)Compatibility:all carsModel:G5 Head-up displaySize: 64.7 mm High x 59.8mm Wide 73.8mm Long / Rear Height 42.6mm Front Hight 64.7mm (See Image for Size Details)Input:5-12VPackage Contents:1*G5 HUD1*Non Slip Base/Mat1*USB Data Cable1*User Manual