The COA Multi-Clicker has a patented volume/tone control enabling you to clicker train even sound-sensitive dogs. It has a raised thumb-piece for easy use and an elasticated wrist strap, to ensure it is always to hand. Ideal for puppy training. The simple step-by-step guide included will show you how to teach your dog fun tricks as well as practical training. Wrist strap keeps the clicker conveniently in reach.