9 volt ultrasonic dog trainer

...Volt Ultrasonic Pet Trainer Description Of Ultrasonic Pet Trainer First, can drive the role of the dog, produce super ultrasonic, can make the dog quickly escape, people can not hear, dogs, cats can hear, when the dog heard the sound of ultrasound, will become uncomfortable, so far from people. Second, can train dogs.This product can stimulate the nervous system of the dog......