$19.99
This barebones music player has no screen, no internal memory and no resemblance to a typical MP3 device. But it's also ultra-cheap -- about $30 less than the least expensive iPod. To use, simply pop a MicroSD card (you can now buy them with preloaded albums) into the slot on the side of the device and plug the included headphones into the jack on the other side. A word of caution: Album selection in the MicroSD format is still limited, and the cards are tiny and easy to lose.
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Last updated November 24 2008: 7:33 AM ET