Now here is an interesting idea: use wind power to charge smartphones and tablets. Wind turbine generators are not portable or compact. Trinity is different. It t can charge USB devices and folds into a 12″ cylinder. Trinity has a 15W generator and a built in battery (15,000 mAh).
You can open three blades by pulling out the 11″ aluminum legs and arrange them like a tripod. On the bottom of Trinity, you will find a USB plug to charge your devices. We have not tested Trinity, so I can’t tell you how well it works. But the idea is interesting.