Dog Whistle To Stop Barking Device Dog Copper Silent Ultrasonic Training Flute Stop Barking for Pet Supplies Sound Trainer Tool

Yes Smart Device: No Material: Stainless Steel Project Type: Dog Whistle Origin: Mainland China Type: Dog feature: 100% new and high quality This whistle can help you train your dog. Use this product to generate ultrasound and diffuse. You can hear sounds within 3 kilometers. The dog whistle will send the dog to detect ultrasound. Dog ears receive sound waves per second, 120 kHz, while people can hear up to 20 kHz. In addition to hearing human voices outside the tube, you can also make dog whistles. The sound people hear is that only dogs can hear the frequency, but this frequency is very far away from ultrasound. Therefore, dogs can hear sounds from a distance. Unique sound and frequency, perfect for liontamer dogs, rich eagle animals