Instructions for use: One-button control switch on the back, and a clip (clip) on the back. It can be clipped on bicycles, belts or shoulders or backpacks, school bags and other personal items, and it plays a safety warning role to ensure personal safety.
The flash mode is:
Click: 5 lights long
Second: 5 lights flashed quickly
Third: 5 lights are slow and flashing
Fourth down - seventh down: 5 lights rolling flashing in different directions
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