These cleaners transform low-frequency AC current into 42 kHz high-frequency sound waves via a piezoelectric transducer. The transducer creates sinusoidal waves, which in turn cause cavitation—the formation and violent collapse of minute vacuum bubbles in the solution. These implosions thoroughly scrub every surface with which the solution makes contact, yet are not harsh on delicate items. The leakproof housing features super-sealing double O-rings and recessed ventilation. The 304 stainless steel tank is surrounded by a durable, impact-resistant polypropylene housing. Sealed membrane control panel is impervious to splashes and spills.