Effective dog whistles to solidify your dog's behavior. This dog recall whistle is the solution that can help you and your pet develop a stronger bond. With the ability to produce different ultrasonic frequencies, an djustable dog whistle can easily teach your dog unlimited commands. Plus, our dog training whistle has a nut and screw that allows you to adjust the frequency until you find the one that works best for your pet. The silent whistle can be heard up to a 25 meters range, making it an effective training tool for you and professional trainers. And by using consistent whistle commands and rewarding your dog with snacks when they do well, you can make your aggressive dog a listening and obedient friend. But that's not all - stainless steel is also a safe material for your pet to use. It is non-toxic and hypoallergenic. This means that you can use the whistle without worrying about any negative side effects for your pet's health. Stainless steel is also easy to clean and maintain. You can simply wipe it down with a damp cloth after each use to keep it in top condition. Improved Communication: The adjustable ultrasonic dog whistle enhances communication, allowing you to teach various commands and reinforce your dog's behavior, resulting in better obedience and responsiveness.