Forgot to mention call of the wild record player. Hasbeen
I still have some old Johnny Stewart and Burnham Bros. first attempts at automated calling...
We have come a LONG ways.
But, in reality, having an electronic caller won't make a good predator hunter out of someone. In fact, it has damaged a lot of good calling areas, and educated a lot of predators.
If someone doesn't know how to call, setup, and be stealthy, they are probably doing more harm than good. (But you'll never convince them of that.)