With its adjustable elastic armband, minimum arm size 26cm which fits most men women and children. You can attach to the arm, ankle, arm, leg, or tied on bike, helmet, schoolbag, backpack and so on.
The PVC armband is rain and sweat resistant with elastic knitted band, which is comfortable to wear. The reflective material makes the band much brighter.
3 Modes: flashing, static and off. Powered by 2 CR2032 batteries (in equipment). Battery life: 70 hours continuous light, 100 hours flashing light. When the batteries run out they can be replaced by new ones.