This is an ultrasonic cleaner from YEMENREN. I have only confirmed that it works, but since it has been stored personally, I am listing it as having no noticeable scratches or stains. Please purchase only if you understand that it has been opened once. 【5-Step Adjustment, Cleans Beautifully】The ultrasonic cleaner is equipped with a 5-step timer function (90 seconds, 180 seconds, 280 seconds, 380 seconds, 480 seconds), allowing you to set the cleaning time according to the degree of dirt and the usage scene. It saves time and cleans more thoroughly. 【600ml Large Capacity, Wide Range of Uses】The ultrasonic cleaner adopts an improved design in terms of appearance and dimensions, making it compact and refined. The ultrasonic cleaner, equipped with a 600ml large-capacity stainless steel tank, is very convenient for cleaning glasses, dentures, orthodontic brackets, metal watch bands, toothbrushes, combs, and more. In addition, the included cleaning basket is convenient for cleaning small items such as earrings, necklaces, and rings. It can be used to clean a wide variety of items. 【360° All-Around Cleaning】The household ultrasonic cleaner generates bubbles in the cleaning tank filled with liquid through high-speed vibrations of 48,000 times per second, and the shock waves from the bursting of the bubbles lift the dirt on the surface. It removes dirt cleanly from all directions without damaging the items being cleaned. Adding detergent to the tank can enhance the cleaning effect. 【DEGAS Gas Removal & Oxidation Mitigation】This ultrasonic cleaner is equipped with an advanced DEGAS function, which removes gas dissolved in water and reduces the oxidation rate of the items being cleaned. This enhances the cleaning effect. YEMENREN Yemenren Ultrasonic Cleaner