SportDOG SAC00-11748 Roy Gonia Mega Dog Whistle

When I read the negative reviews on this whistle I was very afraid to try it. It came in today and I had to go out and to the backyard with the dogs and try it. My two senior dogs are in different stages of deafness and I can't yell or whistle loud enough for them to hear me when they're out in the back. I gave a couple of blasts of this whistle and all three dogs turn around, looked at me and started barking. Okay, so that didn't really prove anything, but at least I do know they heard it. Later tonight my 13 year old went out for her final potty break, she was out back probably 80 yards from the house. My husband picked up the whistle and blew it and she came running into the house. That's an A+ in my book. One Thing I might mention is that I had my digital hearing booster in my ears the first time I blew it, and I couldn't hear it. I turned around to my son who was standing out there with me on the patio and he was covering his ears. I said, you can hear it? And he said yes. I took the hearing boosters out of my ears and blew it again and I could hear it. I guess the Bose hearing boosters don't pick up frequencies that high, and when people say they don't hear this whistle at all, and I'm wondering if they have lost the upper register of their hearing. It's a very high pitch. I can't guarantee you that this whistle will help with training your dog, but at least I know my dogs can hear it, have already responded to it, and it gives me hope. Good luck with your pups, and give them a hug.