Let's Play with the Dog. The dog whistle is a good tool for interacting with your dog. You must be patient, and when the dog finally understands your commands and performs the movements, your joy will be unparalleled. No ultrasound and can be heard by human ears. The function of the dog whistle is to aid in training. It is only through training that the dog can understand your instructions and act accordingly. And there is probably no magic dog whistle in the world that can manipulate a dog into doing anything. Rewards and Rewards are a good way to train dogs. Once the dog has shown the correct behavior thanks to our guidance, we must reward the dog appropriately so that it can confirm that this is the owner's instruction or reinforcement of the owner's behavior. We introduce the training method as a reference. Roughly interfering with dogs is not a good idea. If you want your dog to stop barking, harsh prohibitions or the use of an ultrasonic whistle are not effective methods. The dog will simply become confused and perhaps even more irritable. Are you worried about your neighbor's dog barking? Sorry, but this product won't magically stop your neighbor's dog from barking. However, if your dog barks randomly and disturbs guests or neighbors, you might be able to be patient and use this product to train and guide your dog.