Experience the efficiency of our Adjustable Sound Dog Puppy Pet Training Whistle, a must-have for dog owners seeking to refine their pet's obedience. This versatile tool features an ultrasonic frequency that's silent to the human ear but clearly audible to your furry friend, making it an ideal choice for training without causing disturbance. Crafted for convenience, this whistle also serves as a key chain, ensuring it's always at hand for those spontaneous training sessions. Its adjustable sound allows for varying pitches to cater to different dog sizes and breeds, promoting a consistent and effective communication channel between you and your pooch.