【350ml Deep Tank】: The ultrasonic cleaner is made of high quality ABS material, one touch operation, smartly clean your jewelry glasses and more. Ultrasonic cleaning mainly forms fluid bubbles that hit the seam surface of the object, causing it to burst and fall. 【High-frequency vibration cleaning】: High-frequency vibration separates air and water in the liquid, forming 50500um bubbles, which expand and burst under the action of sound pressure to achieve instant effect, and continuously remove dust, bacteria and oil. of the surface of the object wash to achieve purification. 【360° three-dimensional cleaning】: dirt hides deep in the crevices that cannot be cleaned by simple washing, it penetrates into the crevices in multiple dimensions, and the 360° full high-frequency sweep can clean the places which are generally difficult. clean are. 【Shock-absorbing design】: The bottom of the washing machine is equipped with 4 shock-absorbing rubber feet, which can firmly hold the desktop and reduce the displacement caused by ultrasonic vibration. Suitable for optician, jeweler, watchmaker, dental office. 【Lightweight and Portable】: Only 174g. 21*9.5*7.5cm. You can take it home, office, school or even travel and it will take up a lot of space. Our ultrasonic cleaners use sound waves to clean, so important items experience less friction.Does not contain a battery