Dog whistle uses audio tone generator to emit tones in high frequency range. Humans can only hear up to 20 kHz, but dogs have much better hearing. Since dog whistle is less audible to humans, but loud to dogs, they are perfect for training dogs. dog whistle app can also be used as a dog trainer.

Get ready to train your furry friend with this dog training tool - the Dog Whistle app! This app is designed to help you communicate effectively with your dog. The dog whistle feature allows you to choose from a range of frequencies to train your dog to respond to commands.