1. Eight major functions simplify complexity and focus on practicality. Each function is designed for your safety. 2. The front and rear scanning can effectively detect speed - measuring points. It can detect points 800 meters ahead and 300 meters when reversing. It provides timely warnings and has no blind spots for speed measurement at any angle. 3. The LED display allows the driver to know the current driving speed. It is easy to operate and learn. 4. It offers mobile speed - measuring warnings and radar speed - measuring. It covers the full frequency band without any frequency omissions. It provides real - human voice prompts for speed measurement to avoid accidents. 5. Type: Radar speedometer. 6. Model: V7. 7. Measurement range: X/K/Ka/Ct/Laser. 8. Measurement accuracy: 300 - 800. 9. Resolution: LED digital display. 10. Operating voltage: 12V (V). 11. Scope of application: Universal. 12. Color: Blue. 13. Material: Plastic. 14. Package contents: - 1 * Main unit. - 1 * Charging cable. - 1 * Non - slip mat. - 1 * English user manual.