The digital-audio market is not hurting for portable iPod speakers, which can make sorting through the choices a bit of a hassle. One way to narrow the playing field is to look for models that match the hue of your iPod. Whether you have a black or silver iPod Classic, or a colorful Nano, JBL's On Stage Micro has a paint job to match. This $99 speaker may not pack the low-end wallop of the big boys, but it's cute, compact, and suitable for a bedroom, office, or hotel room.