5 Years of Barking Reduced to Almost Zero

Thank you so much for the amazing product! For the last 5 years we've had a neighbor with a crew of very vocal dogs. We've complained several times, asked her to limit their time in the yard to normal daytime hours, etc., but she'll monitor them for a few days, and then seem to give up. I honestly think that she's just as overwhelmed by her dogs' behavior as we are. I finally couldn't take it anymore and searched online for advice and found your product. Amazing! The dogs learned immediately and never seemed uncomfortable, just a little confused at first. It reduced the barking to almost zero. Now we can sleep peacefully and enjoy our yard again!