Bike Tail Light with USB Rechargeable,Ultra Bicycle Light Alsote Intensity Bright 6 Modes In 1 Rear LED Safety Strobe Flashing Light Compatible With Bikes, Helmets, Bags 6 MODES AND 2 LIGHTS IN ONE BIKE LIGHT - easily control with just 1 press button to switch RED light and BLUE light NEW AND IMPROVED - Alsote light provides more visibility than any other bike lights in the market! This improves the probability to avoid any bike/car collisions.Practical, Reliable, and Durable. Drop-tested from 2 meter, impact resistant and built to perform. Water resistant rated to IPX6 - Protected against splashing water from any angle. USB RECHARGEABLE LITHIUM BATTERY - 3.7V 600mAh battery give you a long run time max 14 hours, just 2 hours charged time and automatic fully charged cut-off system USB RECHARGEABLE REAR BICYCLE LIGHT - Stop buying Batteries Again. This light charges from your computer or any device with a USB port. Only takes 2 hours and it will be automatically cut off power supply upon fully charge.This Bicycle Tail Light has 6 modes:100% Flashing(3.5hrs run time), 50% Flashing (7hrs run time), White or Blue standard (7hrs run time), SOS Flashing (13hrs run time) and Red+Blue Strobe (14hrs run time). MORE APPLICATION TO KEEP YOUR SAFE OUTDISE - quick release rubber strap mount your bike handle bar, seat post, helmet and bags