jeroentbt

We've even been doing that for thousands of years!

I'm here just to join you shouting out. Great peace of software.

I'd read more of this.

This might turn in to something worthwhile: https://smallandroidphone.com/

Yellow brick

Best match I could find: https://en.m.wikipedia.org/wiki/Public_address_system

We called it the PA. Back in the day when I was involved in organising and setting up parties and small concerts. (each about once a year). Not very accurate (looked it up just now) , but you might hear it referred to as such.