【Timed Ultrasonic Cleaning】 90S-180S-280S-380S-480S time ultrasonic cleaning technology, deep non-destructive cleaning of stains, suitable for cleaning glasses, denture, jewelry, watch, etc., easy cleaning of irregular products, and restoring the luster of objects 【Non-Destructive Depth Cleaning】 The ultrasonic cavitation effect of 40000HZ produces tiny bubbles, and the blast of high-pressure bubbles produces strong impact energy, enabling the stains to peel off objects and realize non-destructive depth cleaning. Simply add water to clean it easily ( add a tiny amount of washing-up liquid for further effectiveness).