Eton Dynamo Flash Light with Compass, Black Built-in hand crank power generator recharges the internal rechargeable Ni-MH battery and cell phone batteries 3 LED combine specifically designed optical lens to enhance brightness and efficiency Top mounted compass suitable for outdoor activities Power source: built-in rechargeable Ni-MH battery pack. Dimensions: 5.24&#65533;W X 2.36&#65533;H X 1.89&#65533;D and 133mm x 60mm x 48mm (W x H x D) Weight: 0.32 lbs. and 145 g. Accessories: owner&#65533;s manual, warranty card