This easy-to-use Training Clicker provides an easy way to reinforce positive behaviors and communicate more effectively with any pet. Used in Operant Training and Obedience Training to mark desired behavior. Comes with an instruction sheet. Advantages Clicker training is the process of training an animal using a conditioned reinforcer, which indicates to the animal ("marks") the precise behavior that was correct. It was originally discovered and used with laboratory rats, and later was used in training animals such as dolphins and pigeons. It is a technology derived from the study of operant conditioning in behavior analysis. The name "clicker training" is used because the primary tool is a small mechanical noisemaker called a clicker. Clicker training has also been successfully used in the training of a huge variety of species including many marine animals, livestock, household companion animals, equines, etc. It is used in the training of service animals, police K-9's, search and rescue animals, animals used in military activities, and many more. Even common house cats are easily trained using clickers and treats.