An audible tone is generated and attenuated over a wide frequency range, such as throughout the human audible range, the tone selectively being of short duration. The deck assembly comprises a deck portion formed of a first material and a sub-structure formed of a second material. The ozone elements are bonded together in a cross-shaped pattern inside the housing. The second programmable transistor includes a second gate terminal, a second source terminal, and a second drain terminal, and a second programmable terminal. 0; preferably, the pH of the composition is from about 5.