Here ya go it’s called an E collar.
There’s a bunch of different brands. This looks a lot like one of ours. Don’t remember the brands we have. Won’t be home for a few hours to look.
Educator ET-300 Mini 1/2 Mile E-Collar Remote Dog Training Collar With Vibration, Tapping Sensation and Pavlovian Stimulation
https://www.amazon.com/dp/B007RBDUTS/?tag=joeychgo-20.
