The EzyDog Command Clicker is an effective dog training tool to reward positive pet behavior through repetition. With its unique hands-free ergonomic design and adjustable wrist lanyard, the Command Clicker is perfect for use when training two dogs at once or when doing a quick bit of training on your daily walks. The clicker provides an event marker sound that connects the positive behavior with the reward, making it an effective way to train your dog in a safe and humane manner.