Trixie high frequency whistle

The Trixie High Frequency Whistle is an adjustable, ultrasonic training tool that produces a sound barely audible to humans but perfectly clear to dogs. Designed for obedience, training, and recall, it allows you to communicate over long distances without disturbing the surrounding environment. It features an adjustable screw and locking nut underneath a protective cap. This lets you tune the exact frequency to match your dog’s specific hearing. Ensures a consistent tone frequency is maintained so the dog does not get confused by varying sounds.