- Smart Brake Sensor & Auto On/Off: The XR PRO smart bike tail light enhances your safety with its intelligent design. It automatically turns off after 30 seconds of inactivity and activates when riding vibrations are detected. For added visibility, it emits ultra-bright lights for 3 seconds to alert surrounding riders. - Rechargeable Lithium Battery: Equipped with a 300mAh TYPE-C rechargeable lithium battery, this tail light offers long-lasting performance. After a full charge in just one hour, it provides up to 36 hours of illumination in low mode, 24 hours in medium mode, and 16 hours in high mode. Conveniently charge it using computers, chargers, or power banks. - Versatile Mounting Options: Installation is simple with two mounting options. Use the metal mounting bracket to attach the tail light under your saddle, or opt for the adjustable silicone strap to secure it to the seat post. This flexibility ensures a quick and easy setup. Use Scenarios: 1. Commuting: Ensure you're seen during your daily rides, whether in busy city traffic or low-light conditions. 2. Recreational Riding: Perfect for weekend cyclists who want to enhance their visibility during evening rides. 3. Mountain Biking: Keep safe on trails by alerting others to your presence with the bright, responsive tail light. The XR PRO smart bike tail light combines advanced safety features, long-lasting battery performance, and user-friendly installation to provide cyclists with peace of mind on every ride.