Clicker
Small noisemaker, used in animal training / From Wikipedia, the free encyclopedia
For other uses, see Clicker (disambiguation).
A clicker, sometimes called a cricket,[1] is any device that makes a clicking sound, usually when deliberately activated by its user.
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They usually consist of a piece of thin metal or plastic held in a casing so that the metal is slightly torqued; depressing one end of the metal causes it to pop out of alignment and releasing it causes it to pop back into alignment, each time making a sharp click.
With some clickers, the user depresses the metal directly with thumb or finger; with others, a button extends above the surface of the casing so that depressing the button makes the metal click.