Adjustable Dog Whistle — Compact, Durable, and Easy to Use Key benefits Precise, signaling: Adjustable pitch lets you finetune the whistle to your dog's hearing range by simply tightening or loosening the screw. Twopart sound for flexible training: Produces an ultrasonic tone dogs can hear but humans cannot, plus a light audible tone you can use to give long or short signals when training. Portable and safe: Compact (about 5.5 cm) and mainly silver in color. Made from nontoxic, nickelplated brass for longlasting use. Always on hand: Includes a key ring loop for convenient attachment to keys, a leash, or a bag. What it does and how it helps Ultrasonic tone for dog responsiveness: The frequency component is intended for dogonly hearing, useful when you want a signal your pet notices without disturbing people nearby. Audible tone for clear owner control: The light, humanaudible sound lets you practice timing (long vs. short blasts) so you can consistently communicate commands during training. Easy adjustment: The screw mechanism provides a simple way to change pitch so you can find the most effective frequency for your dog. Specifications Material: Nontoxic, nickelplated brass Color: Mainly silver Length: About 5.5 cm Features: Adjustable pitch screw; dual (ultrasonic + light audible) sound output; key ring loop included Practical use scenarios Recall training at the park: Use the ultrasonic tone to get your dog's attention at a distance and the audible tone to reinforce long or short recall signals. Walks and hikes: Attach the whistle to your leash or keys to carry it easily and use adjustable pitches to communicate without shouting. Obedience or agility practice: Switch between ultrasonic and audible signals to teach timed responses and maintain consistent cueing during drills. How to use Adjust the pitch by turning the screw until you reach the tone that elicits the response from your dog. Use the audible tone to practice long and short whistle signals so your dog learns different cues. Keep the whistle attached to the included key ring loop for quick access. Reliable, compact, and straightforward — designed to support consistent, humane dog training without added complexity.