Before I get into the Yorozu Audio Sound Revolution Universal Speaker Kit, be warned that the only information on this was in Japanese, translated to English with Google Translator. That being said, this looks extremely awesome, even if some of the translations are vague or non-sensical.

Basically, the device is a speaker you can attach anywhere. In the picture, you can see it's attached to the product pack, which is shaped like a milk carton. According to the translated source, "the speakers can be used as milk cartons." I don't suggest that you try this, but if you do, and it works, it's a good way for music enthusiasts to get their daily doses of calcium.

Attach the speaker to anything, thanks to the use of double sided adhesive. The system itself has a maximum output of two watts with the built in amplifier. The amplifiers work with AAA batteries for portable use.

Beyond that, you can figure it out. Here: "Hardware is the same as the milk carton into a simulacrum to sell the package features, the product paste pack can be used as a speaker. The unit also are painted illustrations."

Good luck!