Posted at 06:11h in Clicker Training Basics, Frequently Asked Questions, Frequently Asked Questions about Clicker Training Horses 0 CommentsDoes the marker signal have to be a Clicker? A clicker is a very effective marker signal, which is why it is widely used by many animal trainers. Though the clicker is not the only possible marker signal that you could use. Dolphin and marine mammal trainers use a whistle. Fish trainers often use a spot light. When training deaf dogs, a vibrating collar also works as a marker signal. You could also use your voice i.e say “good”, however using a clicker has many advantages over using your voice. Studies have shown that using a clicker as a marker signal reduces training time by up to two thirds compared to using a verbal marker such as the word “good”.