USB rechargeable activity light

Safety strap with built-in led that can easily be strapped around your arm. The TPU strap makes you more visible during outdoor activities in the dark. Lightweight and easy to adjust. With 2 light modes (normal and blinking). Integrated 300 mah lithium polymer battery that can be re-charged easily with the included micro USB cable. Working time on one charge is 3 hours. Sweat and shock proof.