The classic rubber ducky toy has now evolved into the iDuck floating wireless speaker. This sound system looks exactly like one of your childhood rubber duckies.
The iDuck floating wireless speaker comes with an egg-shaped transmitter that connects to your iPod or MP3 (this part should not be near the water). The duck, however, can be put in your bath and you don't have to worry about getting it wet, because it was design for this!
The iDuck Floating Wireless Speaker Blasts Music in the Bath