1. Advanced Radar Technology: Equipped with a 24GHz radar, this taillight detects approaching vehicles, ensuring enhanced safety during your rides. 2. Intelligent Sensing Mechanism: Features smart sensors that adjust brightness and flashing based on ambient light conditions and traffic, providing optimal visibility at all times. 3. High Visibility LED: The bright LED light is visible from a distance, making sure you are seen by motorists from behind, especially in low light conditions. 4. Waterproof: With an IP64 rating, the taillight is protected against water splashes from any direction, making it suitable for all weather conditions. 5. Easy to Install: This accessory is easy to mount on any bicycle, enhancing safety without adding bulk. 6. Number of lamp beads: 40 7. Battery capacity: 1000mAh 8. Taillight gear: 5 gears 9. Millimeter wave radar: 24GHz millimeter radar 10. Battery life: about 3 to 6 hours 11. Product size: 62x42x24mm 12. Waterproof level: IP64 13. Color: Black 14. Material: Aluminum PC 15. Package Contents: 1 * Taillight, 1 * Seat tube bracket, 1 * Saddle bracket, 1 * Charging cable, 1 * shim, 2 * Grommet, 1 * Wrench. Only the above package content, other products are not included. 16. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.