In contrast to conventional clickers the volume & pitch on the Clix Multi-Clicker can be adjusted The principle is simple ´ Programme´ your dog to the acoustic click-tone signal – look for an appropriate volume for your dog This signal tone method has one great advantage over other educational appliances You can get along without the use of punishment. Neither screaming & cursing nor violence are needed. Absolutely no aggression is communicated from master to dog at all Also suitable for cats & horses! With training instructions