The Clix Silent Dog Whistle is a useful tool for training your dog.
You can train your dog to link various commands (sit, stay, come here, etc.) to various whistle signals.
This whistle is ideal for training inside and outside the house.
The whistle signal that this whistle produces has a high frequency and is barely audible to human ears, which is essential to assess its effect.
Higher frequencies can bridge bigger distances than lower frequencies.