An iPhone 4 Amplifier That Doesn't Need Any Electricity

The Phonofone III, like the Phonofone II before it, pumps tunes from your iPhone at 60dB without having to be plugged in to any outlet. Yup. It's just big beautiful acoustic amplification.

While its predecessor was nearly $900, Science+Sons is offering first batch of redesigned Phonofone IIIs for only about $200 bucks. That's not extravagantly expensive! And the new Phonofone isn't as extravagantly designed as the earlier place-your-iPod-earbuds-in-a-special-listening-chamber version, either—just pop your iPhone 4 in the dock and the ceramic horn will amplify the audio coming out of your iPhone's speaker roughly 4 times, or about 60dB. Simple!

An iPhone 4 Amplifier That Doesn't Need Any Electricity

The first run is only 50 units, so act fast if you want to give your iPhone to gift of song this holiday season. [ScienceandSons]