The wife and I do a bit of playing with a jam session group at the RV park we winter in. There's no PA to speak of, we just have a couple of small amps for her bass guitar, my guitar and a couple of mics. Other players bring their own amp/mics. It's really just a pick up group, very casual.

We end up having to situate the amp/speaker somewhere that makes it hard to hear our voices. She wondered aloud, if there wasn't a way to have a headset mic (we currently use mic stands) with an earbud monitor to better hear herself.

That's where it began.
Thanks!
LLOYD S