I have the 20G PJB. It's too big for any normal pocket. Cargo or jacket pockets work well. That's not such a big problem. The PJB comes with a leather cover that has a solid belt clip. Dimensions of 150 x 80 x 26 mm. 10 hrs playtime. Std software is for windows, but a java version is available from their web site. I've run the java on mac, except my mac doesn't have USB.

Unit comes with a pile of accessories. See web site.

Personal Juke Box