Dog Training Whistle and Dog Training Clicker Set (with both function) BLACK, BLUE, RED, PINK Train and develop your relationship with your dog fast and effectively with just a blow on your whistle or click on the clicker. Whistle is commonly used to signal the dog to stop unwanted behavior and training for obedience/ HTM/ Agility. While the clicker is commonly used for giving positive reinforcements for positive behavior. OBEDIENCE TRAINING. The sound produced from the whistle is known to be effective in training their dog as it can easily catch their attention since the dogs hearing is very sensitive that they can easily hear even the lightest scratches of the cats and footsteps of a man (a dogs hearing ranges from 40 up to 60 kilohertz). Train your dog to follow simple commands such as "sit", "come", "stay", "down" and to change direction by using different whistle patterns for each one and/or to make him stop for any unwanted behavior such as unnecessary barking and the likes. POSITIVE REINFORCEMENTS: The clicker which makes a pleasant sound for most of the dogs are known to be used as a signal for good behavior. For every click there must be a treat thats the principle in using the clicker. Treats like food or toys plus with consistency helps the dog know and register to his memory all the good actions that effectively raising his awareness of the positive deeds. The dog would definitely know how to behave properly. HANDY AND LIGHTWEIGHT: Ergonomically designed to suit all your needs, made with aesthetics in mind as well. Made and constructed in an effective plastic medium. Inclusions: A Set of 4 whistle with a clicker comes in Black Blue Red and Pink colors.