True power hikers create electricity while on the trail

Electricity on the go!
The latest product to come out of the USA is a backpack that creates its on power.

If is not a lot, but sufficient to run and mp3 player, GPS, Cell phone or night vision goggles.

The chron.com said on how the backpack works;

The up-and-down motion caused by walking powers a small generator, producing electricity that can be used directly or stored in a capacitor or battery.