Adjustable Frequency : Dial in the ideal frequency for your dog, ensuring a response that's quick and accurate. Training Tool : Perfect for obedience training, agility exercises, and behavior modification, this whistle does it all. Silent Ultrasonic Sound : Maintain the peace and privacy of your training sessions with a sound that's tailored for canine ears. High Quality Metal Material : Crafted from sturdy metal, this whistle stands up to the rigors of daily use. Consistent Tone Frequency : Experience the reliability of a steady tone that never wavers, providing a clear signal every time. Achieve unparalleled results with our adjustable frequency professional dog whistle. Tailored for optimal training, it combines silent ultrasonic sound technology with the robustness of high-quality metal materials. Whether you're training a new puppy or perfecting commands with an experienced dog, this whistle is your key to success, offering a consistent tone frequency that your dog will recognize instantly.