This small power plant weighs less than a pound and features a hydrodynamic turbine that attaches to a 70 inch long rope-like drive shaft. Secure the donut shaped device around a stick jammed into the ground, drop the turbine in water, and Blue Freedom’s 5W generator will fully top off the built-in 5,000Ah battery within a couple of hours. While you are out in the woods, you can get extra chat time, browse the internet, or charge any of your USB compatible devices at up to 2A speeds.