Small PA for public venue

Idea: A small public announcement system for a venue. Most have a sound system but I mean a portable one.

So with small events that are sort of public but not that public, organizers can get a bit of attention without necessarily blowing the whole venue.

I’m supposing a wireless mic would be cool.

One thing that comes to mind is a mic that someone can speak into. It broadcasts into the venue on an FM channel. So people can tune in with their FM walkmans and such using headphones.

That way a mic can easily be passed around a group. People who can’t hear just have to turn up their headphone volume.

Also, the entire thing can easily be recorded this way by passing the mic around.