Feature Highlights: 1. Smart Dual Sensors – Built-in light sensor and vibration sensor automatically adjust brightness and activate when motion is detected. 2. Fast Type-C Charging – Equipped with a 300mAh lithium polymer battery and supports Type-C fast charging for quick power-ups. 3. Multiple Charging Options – Can be recharged conveniently using various power sources. 4. Energy-Saving Auto-Off – Automatically turns off after 30 seconds of no motion to save battery. 5. Long Standby Time – USB rechargeable design ensures extended use with minimal downtime. Product Details: This smart bicycle tail light features an auto-sensing function that activates under low light or when vibration is detected, enhancing visibility and safety. Made from durable ABS material, it is compact, weather-resistant, and easy to install. The light automatically switches off after 30 seconds of inactivity to conserve power. With its Type-C fast charging capability and versatile charging methods, it offers reliable performance for daily rides. Ideal for cyclists looking for a smart, efficient lighting solution. Specifications: - Color: Black - Material: ABS - Type: B (with cushion frame) - Battery: 300mAh lithium polymer - Charging: Type-C fast charging - Package Includes: 3 x bike tail light, 3 x cushion frame Note: Slight color variations may occur due to lighting and screen differences. Product measurements may vary within +/- 1–3 cm.