Get huge sound from a small device. The FX 300 Speaker System by Kensington is easy to connect to your MP3 player - it also comes with a docking connector. Use the FX 300 anywhere you're going to provide personal, portable stereo sound. It's perfect for home, office or on the road:

"Share your favorite tunes anywhere, anytime. FX 300 Speaker To Go is smartly designed into a lightweight, protective case with exterior volume control. Once your MP3 player is safely tucked in, music comes out. Turn it on. Turn it up."

Check price and availability at TheNerds.

Want to see more portable MP3 speakers? You might also want to check out the iMainGo, also from TheNerds:

"iMainGo goes wherever you go. No Need to plug it in or recharge. Its advanced design gives its four AAA batteries unprecedented life up to 30 hours. Don't be fooled by the size. Thanks to iMainGo's state-of-the-art electronics and speakers, you hear rich full sound you'd expect from systems many times its size. iMaingo is tough. Safely inside, your iPod is protected from bumps and other rough handling by iMainGo's sturdy construction."