The best thing about the solar things is the portability that it gives the objects. So, solar powered iPod speakers from Hammacher Schlemmer perfectly fits the bill. Once you have charged it for three hours, it will give you the playing time of one hour, which is definitely less in terms of the input. But, it is definitely good enough for all those outdoor parties, but one thing, those parties need to be short and sweet or you will have to plug-in this speaker for the rest of the time. It wears the price tag of $200.