-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.