Adapt Ultrasonic technology with powerful 40KHZ frequency system. High working efficiency to clean your jewelry, bracelet, necklace, eyeglasses, and etc.
Lightweight and small size, super convenient to take. Only required with 2 * AAA batteries (Not Included), very easy to use.
4 rubber leg holders keep the device stable and safe.
Equipped with screw drivers to tighten your eyeglass in case of any screws loose.
Provide contact lens cover to help you clean your contact lens.