Description
CMUBH ultrasonic dog barking control devices is a perfect dog training and dog bark control device. This no barking device emits ultrasonic waves at a frequency from 22KHz to 27KHz, which is very sensitive to dogs and no harm to dogs and humans. Suitable for small medium large dogs without any harm to dogs. Newly designed and upgraded Ultrasonic Dog Training and Anti Barking Device. The human hearing frequency range is 20Hz to 20KHz, while dogs can perceive a much wider range from 15Hz to 120KHz
