PERFECT ALL ROUND WHISTLE: The Coachi Training Whistle is great for all of the family to use and perfect for all types of retrieval and obedience training, gundog and puppy training too! RECALL TRAINING: Whistles are great for recall training as they help to standardise commands and are great if different people are training or walking the same dog. STRONG CLEAR SOUND: The Coachi Training Whistle produces a single clear tone that carries well when distance training, ensuring your dog will always receive clear signals and commands. LIGHTWEIGHT and COMPACT: Super-light and compact in design, the Training Whistle can easily be slipped in a pocket or treat bag to ensure you always have it to hand. ADJUSTABLE LANYARD: The attractive corded lanyard is fully adjustable so you can secure at the desired length and it is reflective too!