Communications

Stay Entertained

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

This story is part of our July/August 2010 Issue
See the rest of the issue Subscribe

Uh oh–you've read all five of your free articles for this month.

Insider Online Only

$19.95/yr US PRICE

Communications

You've read of free articles this month.