Give your cell phone a boost! Ever been caught with low or dead cell phone battery? No charger, or no where to plug in? Eton’s BoostTurbine 2000 is Rechargeable USB Battery Pack with Hand Turbine Power Generator. Crank it & in one minute the hand turbine power generator can produce enough power for a 30-second call or a few critical texts. When fully charged, BoostTurbine2000 fully charges most smartphones! See how it works here! Face Book here!