WHISTLE AND CLICKER: The Coachi Whizzclick is a patented training aid that combines two of the most popular dog training tools; a clicker and a whistle, making it an essential training product. RECALL TRAINING: Whistles are great for recall training as they help to standardise commands and are great for all the family to use. Perfect for all puppies and dogs 8 + weeks. DISTANCE CONTROL: Using a whistle allows you to have control over a greater distance and enables use to use distance commands, such as 'sit'. CLICKER TRAINING: The Coachi Whizzclick clicker, has a very clear sound, it's easy and comfortable to press and use. The whistle produces a single tone that travels well in open spaces. ADJUSTABLE LANYARD: Is suitable for either neck or wrist use, it is fully adjustable so you can secure at the desired length and it is reflective too!