1) Emergency radio 2) Solar AM/FM Radio 3) Digital Display 4) Dynamo ... GMC Solar Dynamo,Crank Digital Display,Radio AM FM,Dynamo Digital Display Radio AM/FM (SB-5020B) Function & Features: ... 4.Digital display of frequency, 2 band: FM/AM 5.Digital clock, timing power on 6.Charge digital ... Time of being fully charged under sunlight(500W/ M2 )35 – 42 hours13. Radio working time after being fully charged7 ...