Features1High Brightness: This bicycle tail light features high brightness for enhanced visibility and increased safety during nighttime rides. Be visible and ride with confidence. 2Shockproof Function: Equipped with a shockproof design, tail light effectively absorbs bumps and vibrations during rides, providing a comfortable cycling experience. 3USB Rechargeable: Say goodbye to frequent battery replacements. This tail light can be conveniently and quickly charged using a USB port, saving you money in the long run. 4Rotatable Design: With its rotatable feature, you can easily adjust the angle of the light beam to suit different riding scenarios. Illuminate your way and stay safe on the road. 5Waterproof Design: Made with waterproof materials, this tail light is designed to withstand splashes and adapt to different weather and riding conditions. Ride worry free in any environment.SpecificationItem Type: Shockproof Bike Tail LightMaterial: ABSBattery: Polymer battery (built in)Package List1 x Tail Nail1 x Bracket Buckle1 x Bandage1 x Charging Cable1 x Base