The philosophy behind most convergence devices is that they are supposed to combine complementary functions. For example, camera phones are designed to help you ditch the standalone camera (though they’re not quite there yet). This convergence device, however, seems to have come out of left field. The Eye Play may look like a regular case for your sunglasses, but it also boasts a pair of flat panel speakers.

The idea is that you can stash your shades inside and let the tunes blast out of the speaker on the outside, getting sourced from your iPod, iPhone, Zune, or any other MP3 player, because it presumably uses a standard 3.5mm audio jack. The NXT speakers are supposed to put out “high-quality sound” and you’ve still got basic controls for things like volume and play/pause. As far as I can tell, the Eye Play does not require its own batteries.

Look for the Eye Play Sunglass Case/Speaker in black, white, silver, and pink. Retail price is $49.99.