1.[LED Tail Light] This cutting-edge LED bicycle taillight redefines maximum visibility on the road, ensuring you can ride confidently day or night, while also featuring strong practicality, precise design and practicality, making it the perfect companion for your cycling adventures. 2.[Multiple Lighting Modes] The bicycle LED drip taillight has multiple lighting modes, you can choose between steady, flashing and pulsating modes, and quickly switch to suit different riding conditions with one button. Unlike traditional flashing taillights, the light is flowing, just like photons falling, softer and more beautiful. 3.[Rechargeable and USB Powered] Say goodbye to disposable batteries! The bicycle taillight is USB rechargeable, convenient and cost-effective. Just plug it into any USB port to charge, saving you time and money while reducing waste. 4.[Mildly Waterproof] The LED bicycle taillight is waterproof for daily use and can resist splashing water. Attention! Not resistant to heavy rain and soaking!