Anything that you do these days is being used to generate power. We can have OPEC to thank for that. There have already been concepts of motion powered cell phone chargers - this one makes sure that the little ones play time is put to good use as well. The yo-yo is to be used as it normally would be , only the rotating motion is used by magnets to generate power and store into a battery.

You can later connect your cell phone to the Yo-yo and recharge it courtesy Yo-yo power.

iYO YOYO from Peter Muungano on Vimeo.

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