The Most EcoFriendly iPhone Speaker Made from Bamboo Uses Zero Electricity

I think this just might be the greenest speaker for iPhones that we've come across yet.

It's a piece of bamboo. And that's it. Just a piece of bamboo...but it works wonderfully.

Source:
http://www.treehugger.com/files/2011/06/the-most-eco-friendly-iphone-speaker-made-from-bamboo-uses-zero-electricity.php