One thing we consider first in choosing devices is actually the Battery Life, on how long will it take to deplete, Most users demands those type in which may used atleast a little bit longer enjoying and playing to their favorite gadgets. But hold on for a second Hyun-Joong Kim and Kwang-Seok Jeong would answer to your demand, By their creativity they’re come up with the cool result yet fashionated gadgets,The Self-Energy Converting Sunglasses, Self-Energy Converting Sunglasses, A sunglass who can charge your favorite MP3 player or even Cell Phones, this thing got dye solar cells on its lense, in which it can directly convert the sun’s power into electric energy.[Mobilewhack],[Designzen]