Smart TaillightOur bike taillight is equipped with a motion and light sensor, which have a highlight mode for 2s when braking. Besides, our taillight will turn on automatically in low brightness and turn off in high-intensity light. To switch between intelligent and manual modes, double-click the button.Unique Design Introducing the 2023 NEW SHAPE BIKE TAIL LIGHT! Our bike taillight with unique frog look is the ideal light to your friends and decorate your kid's stroller!6 Lighting Modes6 different lighting modes, including steady on mode (8h), breathing flash (18h), flow flashing (30h), single flashing (32h), double flashing (36h), and flow plus single flashing for optimal visibility. Stay safe and visible at night with our bike rear lightIPX6 WaterproofOur bike brake light is made of IPX6 waterproof material. This lightweight taillight can be mounted on mountain bikes, road bikes, children's bikes. Easy to install with the strap that fit tightly around most handlebars and seat posts.USB RechargeableOur bicycle brake light has a 400mAh rechargeable battery that can run for 8-36 hours under varying light modes. It can be charged effortlessly through computers, chargers, or power banks(a charging cable included in the package).