360 degree three-dimensional cleaning: This professional ultrasonic eyeglass cleaning machine can clean smudges, fingerprints, oil and odors from glasses, jewelry and metal watch bands in all directions. It can clean spaces that are usually hard to clean and protect contact lenses from damage. Non-destructive deep cleaning - 45,000 Hz high-frequency vibration separates air and water in liquid to form 50-500 micron bubbles, which expand and rupture under the action of sound pressure, and the force of impact continuously washes away the dust. , bacteria and oil on the surface of the object. USB Charging - The ultrasonic cleaning machine adopts USB charging socket. The ultrasonic eyeglass machine only makes a slight hiss, does not affect others, and does not damage your hearing. Shock-absorbing and non-slip - The bottom of the ultrasonic washing machine is equipped with 4 rubber feet . shock-absorbing rubber, which can be firmly adsorbed on the desktop, reducing the movement of the machine under strong vibration and providing additional support.