cool. to think i already had one...

@Glickclik - this is really cool. And just the solution for my son's party bot. Now we don't have to mount speakers all over it. Have you tried it? How does it sound?

No sorry. I haven't tried it but I imagine it could.vibrate thin plastic case pretty well.

I've used this , frequency response is less than a piezo speaker , better off just grabbing a regular old 1watt paper 4 ohm speaker of your size choice. That's just my opinion though.

Thanks Josh. Its always good to have someone's first hand experience. Too bad they dont work so well.