LIXADA USB Rechargeable Bicycle Light Bike Tail Light Waterproof Cycling Rear Back Light Tail Rear Safety Warning Light Lamp

features 4 modes and USB recharging, great choice for night riding.
Features:
4 lighting modes, reminding passengers and drivers to keep a safe distance.
Convenient USB charging, just connect it with any USB devices.
Made of high-quality plastic, weather-proof and durable.
Mini size for convenient carrying.
Comes with 2 rubber O rings for easy installation on your bike seatpost.