Another thing for being CAUTIOUS about is using ultrasonic Pet barking devices around other close by dogs. The sound could have an impact on them, as well, leading to confusion or stress. Applying these devices in a very managed natural environment the place only your Canine is existing is best. https://pawpressnews.com/best-dog-deterrent-device-for-dogs-the-ultimate-solution-for-bark-control-and-training