Battery Free Armband With Self-powered Safety LED Light for Night Runner

Armband with self-powered safety LED light

No battery, as long as you run, light never off

IPX8, waterproof, can be used in the water

Self-Powered Safety night light

Powered by human motion, designed for runners' safety

Kinetic energy harvester embedded to convert kinetic energy into power

Environment friendly, waterproof, colorful, endurable and lightweight

Wear it on your arm

Use high standard environment materials, eliminates industrial pollution and allergies

LED bulbs, 15LM

Washable by hand

Touch sensitive, easy to operate, can directly touch screen, no need to take out the phone

Portable storage design for earphone cable

Double hold adjustable Velcro

Earphone hole and earphone at fixed position, better fixed headphone cable

Multi color shell optional

Waterproof and anti sweat, personal use

Suitable for arm circumference from 230mm to 380mm

S: for 5" smart phone

L: for 5.5" smart phone (optional)

Weight: 48g