The Soulra sound system for iPods and iPhones relies on a high-efficiency solar panel to power the speakers and recharge the music player.
Credit: Christopher Harting
Product: Soulra
This story is only available to subscribers.
Don’t settle for half the story.
Get paywall-free access to technology news for the here and now.
You’ve read all your free stories.
MIT Technology Review provides an intelligent and independent filter for the flood of information about technology.
Subscribe now Already a subscriber? Sign in