This 15L waterproof backpack is equipped with reflective strips and LED lights which will respond to signal received from remote controller, reminding passengers and drivers keep distance from you. Built-in 500mAh rechargeable battery. It can work 12 -15 hours of continuous work after 3 hours full charging. Absolutely a perfect add-on for night safety cycling.

Features:
4 Led signals, reminding passengers and drivers to keep a safe distance._
Wireless control, mounting it on handle bar, free your hands, safe and convenient.
Waterproof and rip stop nylon material makes you ride daringly in the raining.
Built-in 500mAh rechargeable lithium battery, easy to recharges from your computer or any device with USB port.
Adjustable straps to fit your backpack perfectly._
Perfect choice for running, cycling, mountaineering, hiking, fishing, _cross-country and other outdoor activities._

Specifications:
Material: Nylon PC ABS
Color: Black_
Working Time: 12 - 15h
Charging Time: 3 hours
Battery: 4.2V, 500mAh
Bag Size: 40 * 25 * 15 cm / 15.7 * 9.8 * 5.9 in
Bag Weight: 260 g / 9.2 oz

Package List:_
1* Bag
1 * Wireless Controller
1 * Controller Mounting Base
1 * USB Cable
4 * Zip Ties
1 * Manual