The Company of Animals Clix Whizzclick Clicker & Whistle Combination is a fun, fast way to train your dog. It features two functions built into one unit. The whistle is used as a cue or command allowing you to control your dog at a distance, while the clicker is used to reward the behaviors. The step-by-step training guide will show you how to get started and teach useful commands such as a distance sit and a reliable recall. Clix Whizzclick Clicker & Whistle fits comfortably in your hand, and may be attached to a lanyard or key ring.