... AM/FM Radio 3) Digital Display 4) Dynamo LED Flashlight, Outdoor Radio CE, RoHS, BV, GMC Solar Dynamo,Crank Digital Display,Radio AM FM,Dynamo Digital Display Radio AM/FM ... -span:Switch5000 timesThe whole unit5 yearsThe plastic part5 yearsOthersSpecification of built-in battery300mAh, 3.6vDiameter of built-in speakerΦ36mm (two)Generator power5W