電池沒電,那你用搖的 – Mobile Battery Charger

Swing Your Energy – Mobile Battery Charger: "

Finally a smart little design that makes your life easier, The Swing Your Energy Charger by Song Teaho & Hyejin Lee allows you to insert your battery into the device, then give it a few good spins around your index finger and done you have enough power to chat for little longer or at least get you to a charger. Source

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