Features: Essential driving data: Shows driving speed and direction, the crucial data every driver wants to know, projected in color display directly onto the windshield in front of you without the need to take your eyes off the road. Auto power on/off: Auto power on/off of the head-up display with vehicle start and stop. Easily switch between KPH or MPH speed units, with a speed alarm, giving you the ultimate display without compromising your safety. Plug and Play: No complicated installation. Just plug into cigarette lighter. Includes non-slip mat. Designed with the latest nanotechnology eliminating unwanted double reflections from the vehicle's laminated windshield. Suitable for all vehicles: Built-in premium chip providing you with reliable real-time data received via GPS and providing you with compass and driving direction without the need for an on-board computer. Perfect for every vehicle. Multi-color display?: 3.5-inch multi-color digital LED display with built-in light sensors for automatic image balance for clear reading and visibility during day or night driving . Make your travel experience safer. Features: Model:?A2 Color: Black Display: 3.5 inches Voltage: 12V Item size: 80*45*12mm Weight: 210g