They were recommended for us when off roading to communicate between vehicles, but never seemed to work great at that.
Somewhere I think I still have the usb programming cable for them.
Edit: apparently the intent of my post was lost in my poor wording of the title. It has been updated to better reflect that I would like to use them, but for what? And how?
Send them to me ๐
We use them for Scout camping, and they work pretty well for that, but we're rarely spread out too far and not inside metal cages