"Tired of your iPod running out of power?

A Japanese company says it has found a way to charge portable gadgets just by walking. The shoes have a small generator attached to water-filled soles. Each step puts pressure on the soles, causing the water to spin a small turbine and generate power, NTT said.

The futuristic shoes currently generate 1.2 watts of electricity, "a level sufficient to run an iPod mobile music player forever, as long as the wearer keeps walking," said spokesman Hideomi Tenma.

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