Check out the "Megaphone"- a ceramic amplifier made for use with an iPhone or iPod Touch. No electricity people- just the sound from your device of choice reverberating off of the internal ceramics and then out through the end of it into space.
Ok, I didn't get it at first either. How 'bout a little visual:
No? Maybe a demonstration then:
The "Megaphone" comes in a glossy black, glossy white or metallic gold option. I'm obviously partial to the gold.... so sleek. Love the clean lines of the wooden stand it sits on as well.
To see more pics, read more about how it's made and how it works, check out the article on Designboom.com.