3 in 1 Living Room Control Anti Barking Stop Pet Dog Training

3 Uses in 1, Living Room: Pet Control, Anti Barking Stop Dog Barking, Pet Dog Repeller, and Ultrasonic Equipment for Dog Training. It is safe to correct unwanted behavior and stop dog barking or prevent eating unsafe food, effective pet corrector for dogs of all types and sizes age 6 months to 8 years old. Dog barking control devices emit an ultrasound of 20–25 KHZ, which exceeds the range of human hearing but can easily lead to the dog’s attention without hurting your dog like a dog whistle.