Bests & Worsts Reviews from Amazon

We have 2 yorkies and they bark like crazy when someone comes to the door, and given that we host parties on a regular basis, it's extremely annoying, not only for us, but for our guests I'm sure. I ordered this and was hopeful but skeptical and completely ready to send it back if need be. It came this morning, my husband grabbed a 9 volt battery on his way home, and I sent our son outside to ring the doorbell. Voila, the dang thing worked immediately. The moment they started yapping, I pointed it at them and pressed the button and they shut up, they tried to bark one more time and I clicked it again, voila! My husband was upstairs and didn't believe me, so I went outside, rang the doorbell and he tried it. When I came in he said, "holy crap, it really does work" lol.