Simple Design: Ultrasonic cleaner design, cassette type, detachable power cord.Capacity: 500ml capacity canister ultrasonic cleaner is enough for household cleaning jewelry/glasses/makeup brushes/watches/shavers etc. It does not take up space and is convenient for collection.Material: The inner material is food grade SUS 304, and the outer material is ABS.Low Noise: The glasses ultrasound machine only emits a slight hissing sound, which will not affect others and will not damage your hearing.TIPS: Ultrasonic cleaning is a physical process. If the glasses have grease or coins are oxidized, you can use alkaline cleaners such as hand soap/soap/dishwashing liquid to combine physical ultrasonic cavitation with chemical to achieve a deep cleaning effect. Please note that items with cracks or damage cannot be cleaned with an ultrasonic cleaner.The following objects are not suitable for ultrasonic cleaning:Real pearls, semi-precious stones, jewelry or soft gemstones such as pearls, turquoise, coral, emeralds, etc.Objects that are easily discolored, soaked in water, or damaged.Wood products, leather products, fabrics, surface-sensitive/damaged materials, electronic equipment, polycarbonate lenses (thermoplastics), glasses with coated plastic lenses (even the smallest damage to the surface layer can cause irreparable damage to the material damage).Phones, watches, glass frames or art made from tortoiseshell or abalone.SpecificationTank Material: Stainless Steel (SUS 304)Outer material: ABSVoltage: AC220~240V 50/60Hz AC100~120V 50/60HzUltrasonic frequency: 42,000 HzCleaning Technology: UltrasonicDimensions (external): 202-100-60mmDimensions (internal): 168-79-42mm