ACME Silent Dog Whistle AC535GP [Official Japanese Product]

This is a training dog whistle that can produce sounds ranging from those audible to humans to those only audible to dogs. By turning the bottom of the whistle, you can change the length of the whistle and adjust the pitch. Start by finding a sound that your dog responds to. By blowing the whistle in different ways, you can teach your dog commands and use it as a signal for discipline and training. You can check out the different tones in the video.