Advanced Brake Sensing Technology that automatically brightens when , enhancing safety by alerting motorists and pedestrians. Auto On/Off Functionality with a smart light sensor that activates the LED in low light and deactivates it in bright conditions, conserving energy. Multiple Lighting Modes offering 5 distinct options from steady to flashing, ensuring visibility in lighting conditions. USB Type-C Rechargeable for fast and easy charging, providing modern convenience for users. and Weather- design, perfect for all-weather cyclists with an IPx6 waterproof rating. The XlitET2 Smart Taillight is designed to enhance your cycling safety with its advanced features. The automatic brake sensing technology ensures that you are visible to others when you , while the auto on/off functionality helps save battery life. With five different lighting modes, you can adjust your visibility based on your environment. The USB Type-C rechargeable battery offers quick charging, and its , weather- construction makes it suitable for any cycling conditions. Color:As Shown Material:Aluminum Alloy Package Contents: 1 * Taillight 2 * Bracket 4 * Cable ties 1 * Silicone strap 1 * Type-C charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.