Dyson Energy is a concept device with the shape of a bracelet, specially designed to resolve the everyday problem associated with charging your mobile phones on the go. This surface of this device produces electricity in the ambient air and stores in a Li-Po battery that can be used later to charge your mobile phone. The innovative Seebeck effect allows to keep the temperature difference between the outer surface and the other part that remains in touch with the skin. When its time to recharge a mobile device users just need to plug it into this device through a micro-USB port, and have some extra minutes in use. You can vote for this project here.