This is an intelligent and powerful automotive meter, can help you to see your driving parameters without lower heads. Features: Headup display the driving speed. There are functions such as interval speed measurement, violation monitoring, fixed speed measurement, overspeed reminder, speed limit reminder, toll station reminder, etc. No more tickets will be issued. Easy setup, PlugAndPlay, no professional installation is required. Compatible with most car. Use global position system signal guided calculation. Large and clear display for convenient reading. Accurate and stable detect. Easy to install and stable in use. Specifications: Display color: white, green (optional) Type: kilometers, miles (optional) Main material: PC Item size: 79 * 47 * 47mm Package size: 150 * 100 * 40mm / 5.9 * 3.9 * 1.6in Package weight: 130g Packing List: 1 * Car Speedometer