American Red Cross Clipray Clip-On Flashlight and Smartphone Charger, ARCCR100R-SNG USB port and hand crank to restore power to charge your cell phone. No batteries required - crank for one minute and produce enough power for 10 minutes of light. Crank again and use a standard USB port to charge your smartphone (not iPhone compatible). 3 super bright LED lights. Built-in carabiner-style clip. Dimensions: 2.25"x 6"x 1.25"(W x H x D).