The Button Click Switch, model 775, is a touch switch designed for use by individuals with upper extremity, fine motor, or neurological disabilities. This switch comnsists of a shallow square base with a large, round switch surface that activates with 40 grams of pressure. The unit is equipped with a quarter-inch plug. DIMENSIONS (LxW): 2.5 x 2.5 inches. COLOR: The base is blue and the button comes in a choice of blue, red, yellow, or white.