... Radio CE, RoHS, BV, GMC Solar Dynamo,Crank Digital Display,Radio AM FM,Dynamo Digital Display Radio AM/FM (SB-5020B) Function & Features: ... Charged by external adapter (optional) 4.Digital display of frequency, 2 band: FM/AM 5.Digital clock, timing power on 6.Charge ... interfaceDC plug dia3.5*dia1.33. Fully charged time6 - 8 hoursMain parts life-span:Switch5000 timesThe whole unit5 yearsThe plastic ...