Safety Reflective Belt Strap Arm Band Outdoor Sports Night Cycling Running

Suitable for for outdoor sports, night running, large-scale festival party, concert, promotion, cheer, employee benefits, corporate events and so on.
Can be tied to anywhere you like, such as arm, leg, backpack, bicycle and so on.
Waterproof and the built-in battery is replaceable.
Flashing Mode: Quickly Flashing/Slowly Flashing/Continuous lighting(controlled by the cell battery, include)