•【Ultra Lightweight and Portable Design】Constructed with a durable PC shell, this bike tail light is designed for lightweight performance, weighing only 18g. Its compact form factor ensures effortless portability, making it ideal for all cycling adventures •【Brake Sensing for Enhanced Night Safety】Equipped with intelligent brake sensing technology, the tail light automatically brightens for 3 seconds when you brake or decelerate, effectively signaling to vehicles behind you. This feature improves visibility and safety during nighttime rides •【Four Lighting Modes with Easy Switching】Featuring four different lighting modes, this bike light allows you to quickly adjust the light settings with a simple press of a button. Short press to turn it on, and long press to turn it off for added convenience •【Rechargeable Battery with Type-C Port】Powered by a built-in lithium battery, this tail light supports convenient Type-C charging. It comes with a Type-C cable that can connect to various devices and power sources for fast and efficient recharging •【Smart Vibration Sensor with Auto On/Off】Integrated with a vibration sensor, the tail light automatically activates when movement is detected and enters sleep mode after 30 seconds of inactivity. In smart mode, it conserves battery life, reducing the need for frequent manual control Specifications: •Material: ABS+PC •Size: 30mm*33mm •Weight: about 18g •Battery capacity: 260mAh •Waterproof level: IPX4 •Charging method: Type-C charging Package included: •1 x Bike Tail Light •1 x Bracket •1 x Silicone Fixing Band •1 x Cable