Does anyone really need this thing? Then again, I swim like a cinderblock, so I’m the wrong person to ask.
Actually, this might be a cool thing to have. You leave your iPod/iPhone someplace nice and dry and the ION set-up transmits the audio signal to this speaker (up 9 speakers, which is kinda cool) that floats in the pool.
It also works with virtually any audio source that can be connected with a 1/8 jack.
Read more about it here.