Punishment Are Ultrasonic Dog Training Devices Really Safe and Humane? These popular training devices may spell trouble for dogs. Posted January 13, 2020 | Reviewed by Ekua Hagan ...

Unlike traditional single-frequency bark deterrents, the PawBehave Variable Dog Bark Deterrent introduces a 10-level adjustable ultrasonic technology ranging from 21kHz to 30kHz. This innovation ...

Designed to attach between the leash and collar, the device will emit an ultrasonic tone whenever the dog pulls on the leash. To teach the dog to stay in line and associate the sound with pulling ...