Premium Material & Unique DesignOur ultrasonic cleaner is made of premium PP material, which is user-friendly with overheat protection, one-touch button with indicator, smart cleaning of your jewelry. The chamber with dimensions 22.5 L x 10.5 W x 7.5 H cm, Ultrasonic Cleaner fits and cleans every corner of your ring, jewelry, glasses and various accessories. 3 Time Setting ModeThe sonic jewellery cleaner machine has 3 ultrasonic cleaning modes (180S/300S/Long start), which you can choose the different cleaning modes according to the level of dirtiness of the item. Automatic stop when washing is complete, no over-washing and protection of the wash item. Non-Destructive Depth CleaningThis ultrasonic cleaner uses 42kHz ultrasonic waves to achieve 360 all-round deep cleaning. Ultrasonic oscillation causes the water to occur cavitation phenomenon, produced countless tiny bubbles, the instantaneous high pressure generated by the quickly burst of these bubbles generates huge energy, so that the dirt off the surface of the article, and realize non-destructive depth cleaning. Work Efficiently42kHz Ultrasonic Jewellery Cleane. Its advantages are low noise, small size, convenient cleaning and easy maintenance. Among all cleaning methods, ultrasonic cleaning is the most efficient and effective device.