Training Clicker Karen PryerThe Karen Pryor Clicker trainer is the next generation tool for clicker training. A quiet click. For classes or for sound sensitive animals it's the must have tool. The Clicker has been designed to let you click no matter how you happen to grab hold of it. Upside down click, sideways click, right side up click. You can click with your thumb, with your palm, even your foot. You can also strap it to a wheelchair and click with your palm or chin. This is a must-have training tool for sound-sensitive pets.