Feature: 1. The 360° adjustment panel and five-level timing are carefully designed by professional designers. Gently turn the 360° time adjustment operation panel from left to right to control the running time of the ultrasonic jewelry cleaner. Unique in design and easy to operate 2. You only need to wait a few minutes to enjoy shiny rings, necklaces and watches. Shiny jewelry will make you stand out from the crowd 3. High‑power output and high‑frequency vibration separate the air and water in the liquid to form 50‑500μm bubbles, which expand and burst under the action of sound pressure, reaching an instantaneous impact force of 1000 atmospheres, constantly washing the surface of the object, causing dust and oil to achieve emulsification, peeling, and clean up to micron‑level gaps 4. Ultrasonic cleaner sink with dual protection design and quiet design, equipped with special ultrasonic resistors, professional commercial cleaning machine configuration, no need to worry about leakage caused by long-term use 5. Ultra‑quiet cleaning jewelry washing machine allows you to clean jewelry anytime, anywhere without worrying about cleaning jewelry Specification: Item Type: Ultrasonic CleanerMaterial: ABS + 304 stainless steel Model: MK188 Color: White Capacity: 650ml Ultrasonic Frequency: 48kHz Power: 20WSize: Approx. 180 x 75 x 55mm / 7.1 x 3 x 2.2in Purpose: To remove impurities on coins, gold and silver jewelry, or to prepare cleaning fluid to remove rust Other Functions: Cleaning Discs: CD, DVD, VCD, etc. Jewelry and Watches: Necklaces, bracelets, glasses, dentures, toothbrushes, tableware Glasses Care: Glasses, sunglasses, contact lenses Daily Care: Dental clinic, comb, toothbrush, tableware How to Use: 1. Open the lid and fill the stainless steel water tank with water. Warning: Running the device without water may damage the device. 2. Put the object in the water. Subject should be completely immersed in water. Do not exceed the "Maximum" level. 3. Close the lid and connect the power cord to the socket. 4. Press the button, the blue indicator light will light up, and the working time of 3 minutes will start. When the specified time is reached, the indicator light will go out and the cleaner will automatically stop working.. Package List: 1 x Ultrasonic Cleaner1 x Adapter1 x User Manual