The newest in the line of great radios from Freeplay Energy. The EyeMax charges by solar power, wind-up power or AC charger. A fully charged EyeMax will give you 24 hours of play time. A 60 second wind-up will give you about 1 hour of radio play. Will charge batteries and play radio in full sun. This weather radio model includes broadcasts from NOAA for the latest storm and weather forecasts and alerts. It also has a "line-in" socket for your mp3 player.