You may think you don't need yet another iPod Nano carrying case, but this one is different: It's built from silicon, and it includes tiny speakers.

iFrogz, the company obsessed with the letter Z, has announced that Audiowrapz will be hitting stores next month and can be yours for $20.

The passive speakers do not draw any power from the iPod itself, and don't require batteries. Audiowrapz has a separate charger and a special "Screenz" customization, so you can add any one of dozens of different decals, ranging from smiley faces to skulls.

Reviewers have describe the sound quality as slightly louder than the ear buds you already have. They're fairly quiet, so you'll still need a full-sized boom box to annoy others on the subway or bus.