The sound does not suffer pain to dogs, it works with most of the dogs barking.
This app uses sound frequencies from 0Hz - 35kHz sound waves to repel dogs and stop barking.
It is safe to use. This anti dog bark is temporary solution to stop barking.
![Stop Neighbor's Terrible Dog Barking [Get an Ultrasonic Dog Barking Repellent] screenshot 4](https://i.ytimg.com/vi/abioSEfp18Y/mqdefault.jpg)
9Apps 4.9
