It is a wonderful product for people who like to DIY their own pictures.

Features:
Easy installation and water resistant.
It consist of 144 high visibility RGB lights.
With the sensor， the power will be out automatically when you are not riding.
The speed of 15km/h can be better to display patterns completely， and the patterns will be changed every 5 seconds.
You can download pictures from the internet and design your pictures， including GIF pictures.

Specifications:
Material: ABS
Light Number: 144 RGB LED lights
Waterproof: IPX6
Battery: 1 * 18650 Battery
Working Hour: 15-20 Hours
Item Size: 50.5 * 2cm/ 19.88 * 0.79in
Item Weight: 95g / 3.33oz
Package Size: 53 * 9 * 5cm / 20.87 * 3.54 * 1.97in
Package Weight: 383g / 13.49oz

Package List:
1 * Bike Wheel Light
1 * Sensor
1 * Card Reader
1 * Downloader
1 * Battery
1 * Battery Case
1 * Charger
13 * Belts
1 * User Manual
1 * Box