The Good Rugged, splash-resistant design geared toward outdoor use; built-in rechargeable battery; integrated solar panel for trickle charging while outdoors; remote included; GSM-shielded so iPhone doesn't need to be switched to airplane mode.
The Bad Solar charging requires direct, outdoor sunlight; no FM radio; a tad pricey.
The Bottom Line Its sound won't blow you away, but the Eton Soulra is a durable and compact portable iPod/iPhone audio system that offers a built-in rechargeable battery and solar charging.
Eton Soulra Solar Powered Sound System
We've seen some good portable iPod/iPhone audio systems in our time, but Eton's Soulra is one of the more-intriguing products we've come across in this category.
The unit has a rubberized aluminum body that the company says is splash-proof and the speakers are sealed on the inside to provide "protection from sand, water, and other outdoor elements" (according to the company's press materials). On top of that, the $199 Soulra incorporates not only a rechargeable lithium ion battery but a "high-efficiency" solar panel that allows you to trickle-charge the unit while it's outside (so long as there's ample sunlight, of course).
The best thing to do is charge the battery fully using the included AC adapter before you take it outside. Fully charged, you should get about 4 hours of battery life from the system as your iPod or iPhone is charged in the cradle. But that number will rise if you flip up the solar panel, which doubles as a cover for the dock.