trixie dog activity clicker fluitTrixie Clicker Whistle Plastic Assorted 8 cm The Trixie Clicker Whistle Plastic Assorted 8 cm is a clicker and dog whistle in one, with a constant click tone and a whistle tone audible over longer distances. This combination makes this whistle ideal for training and for long walks where the dog is off leash in open spaces, such as the woods or on the beach. The whistle tone is audible over long distances, so you can always whistle back when needed.