Power Dynamo

By SKY Co.,Ltd.

http://www.chinabuye.com/hand-wind-up-power-dynamo-crank-charger-kit-for-mobile-phones Quick Overview This charger is reusable and convenient for travel bein...
"Smartphone Generator!?"（日本語バージョンあります。）

This game is to try to produce as much as electric power as possible within a limited time by
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10 years ago