Vender NICOLEE 2PCS Pet Supplies Pet Training Whistle Pet Toy Dog Whistle Dog Flute Key Ring Removable Adjustable Ultrasound Dog Trainer al mejor precio

<div><p>Material: metal Features: The sound level can be adjusted, and the dog can be trained using ultrasound Size: 0.9*8.0cm Colour: Black Weight: 15g Package Include:2PCS Pet Training Whistle Principle of dog whistle: The dog whistle transmits sound through the principle of high-frequency sound. Our dogs can receive sound waves of 120 kHz, while people can hear at most 20 kHz. This is the gap! Therefore, the sound of the dog whistle is not easy to detect by the human ear, but the dog is very sensitive.</p></div>