Personal Hydroelectric Generator for your device

Hydropower was used by farmers in ancient Greece to grind grain and today is used in iconic locations like Nevada with the Hoover Dam. But a start up in South Korea have revealed a hydropower device called the eStream, which converts running water into electricity, so you can charge your phone and other USB devices. The eStream is about the size of a water bottle with a turbine that rotates underwater and generates electricity that gets stored in a built in battery. This takes about 4.5 hours to charge fully. A full battery can charge up to 3 smart phones, cameras or other USB devices. Click here to see the eStream in action.