Charge your cell phone on the go or in an emergency when you don't have access to a power outlet. When the Boost Turbine 1000 is all charged up, you have power for a 50% dump-charge to most smartphones. Crank the hand turbine for one minute and produce enough power for a 30 second call or a few critical texts. Made with a lightweight yet durable aluminum. Handy, compact cell phone charger can be packed anywhere in your purse, backpack, or glove box.