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Joy buzzer: History, Related device variations & Overview
A joy buzzer (also called a hand buzzer) is a practical joke device that consists of a coiled mainspring inside a disc worn in the palm of the hand. When the wearer shakes hands with another person, a button on the disc releases the spring, which rapidly unwinds creating a vibration that mimics an electric shock to the unsuspecting victim.
Language: English [EN]
