Portal Speakers on a Bicycle anyone?

[Scoobydoo 5,000+ posts]

I have an ipod but I need to figure out a way to put some good loud speakers on my bike.
I don't want to wear headphones because that's dangerous while riding a bike.

I've gone from big ghetto boombox on bike to small hand sized radio boombox on bike.

Now I'm hoping for something smaller but loud and efficient

Budget:

Crazy new invention called "open ear headphones". They let you listen to music AND here whats going on around you!