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.