I have one of those collars new in the box in the drawer I bought for an unruly pup yers ago I thought would do the trick. When I tried it out, even the low stimulus setting would cause my dog to stop and lick his d-ick so I guess that’s where he felt it. I just couldn’t do it and ended up finding other ways I guess. I just saw it the other day in a drawer. Don’t know if I tossed it in to good will or not. I hope it works for ivan. Several folks have those wireless fence in our hood and it seems to work great keeping their dogs in The yard. I don’t know if it’s the same thing but I would think so