... in the Market ---Wide-Diameter Transducer for Best Cleaning Result Jewelry Ultrasonic Cleaner Applications: Jewelry and Watches Necklaces, Earrings, Rings, Bracelets, Coins, Watches Straps ... Accessories Daily Personal Care: Dentures, Combs, Toothbrushes, Table Wares Jewelry Ultrasonic Cleaner Specifications: Ultrasonic Frequency 42,000 Hz Tank Material Stainless Steel SUS304 Tank ...