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walking charger / charger case

walking charger
walking charger

People walk average 3Km per one day. And we shake arm when walk around. As arm waving, we make a energy It is kinetic energy.
So, I think charging case that use waving energy.

University

mokwonuniversity

mokwonuniversity
Daejeon, South Korea

Design

mokwonuniversity

mokwonuniversity
Chungju, Chungbuk, South Korea