Take your music with you. The Panasonic SV-SD80 digital audio player ($300) has the smallest removable memory unit we’ve seen. A postage-stamp-sized SD Memory Card holds an hour of CD-quality music, and the batteries deliver up to 50 hours of continuous play. The latest Panasonic e-wear device plays it all, including MP3, WMA, and AAC encoded music. Check out more great gadgets at www.technogadgets.com.