This clever device uses the energy of your motion to recharge any device
with a USB port. It's a bit like those watches that turn your wrist
movement into kinetic energy. Walk 10,000 steps, cycle for an hour or
run for 30 minutes and it will recharge three hours worth of battery
life on a smartphone. Cheapest Kickstarter bid is US$75 so not too bad
for the pocketable device.
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