By Michelle Starr The Chargeboard uses the kinetic energy generated from its spinning wheels to charge devices, and speakers in its base turn it into an iPhone dock.

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Source:: http://cnet.com.feedsportal.com/c/34938/f/645093/s/3ecd9863/sc/28/l/0L0Scnet0N0Cnews0Cskateboard0Echarges0Edevices0Etriples0Eas0Ea0Eboom0Ebox0C0Tftag0FCAD590Aa51e/story01.htm