This intelligent smart bicycle rear light can be your best choice for your cycling. It will be cool when using this product.

Features:
7 modes for your safe cycling at night.
Day night automatic detection.
Ambient light sensor function. Meeting strong light， it will shut down automatically.
It has function of cycling intelligent detection. When moving， the power on. When stopping， power off in 2 minutes.
Rechargeable battery can be used for many times.

Specifications:
Material: PC !#!amp!*! ABS Engineering Plastic
Color: Black
Lumen: 50 Lumens
LED Number: 16 LED Lights
Mode: 7 Modes
Output: 3.7V
Input: DC 5V 350mA
Battery: 1 * 18350 Battery
Battery Capacity: 900mAh
Waterproof: IPX6
Working Life: 1000 charging times and 5000 running hours
Item Size: 6.5 * 4.2 * 5cm / 2.56 * 1.65 * 1.97in
Item Weight: 81g / 2.86oz
Package Size: 15 * 8 * 5cm / 5.91 * 3.15 * 1.97in
Package Weight: 142g / 5oz

Package List:
1 * Bicycle Rear Light
1 * Rubber Band
1 * USB Cable
1 * User Manual(English)