Professional Grade Material: The tank of the ultrasonic cleaning machine is made of 304 stainless steel, which is durable and not easy to rust. The design of the bottom non-slip pad provides a strong support effect during work and is not easy to shift. The transparent flap design allows you to continuously observe the cleaning process, and you can see a thorough thorough cleaning. High-frequency cleaning: 47000Hz super ultrasonic vibration, 360 effective cleaning, effective dirt removal and deep cleaning of your valuables. It is better to use tap water or add a little detergent to clean it.Note: If you receive an unsuitable adapter, please email us in time. 4 cleaning modes: The ultrasonic cleaner has 4 cleaning modes (2mins, 3mins, 5mins, 10mins) to choose from, press the button, start with one button and shut off automatically. The whole process is quiet and will not disturb your rest while cleaning. Portable Design: The ultrasonic cleaner is lightweight and compact, with a detachable power cord, suitable for home, office, travel, watch, jewelry, optical, etc. Excessive oil stains on the surface of objects (such as sweat stains and oil stains on the surface of glasses) or oxidation layer on jewelry are difficult to remove, so it is better to add detergent to clean. Wide Uses: Equipped with a 400ml large capacity water storage tank, it can easily meet your various cleaning needs. It can be used to clean jewelry, watches, dentures, glasses, coins, earrings, lab instruments and more.