... Ultrasonic Cleaners Applications1: Jewelry and Watches: Necklaces, Earrings, Rings, Bracelets, Coins, Watches Straps and Bands etc.2: Eye Care :Glasses, Sunglasses, Contact ... Lens Accessories3: Daily Personal Care: Dentures, Combs, Toothbrushes, Table Wares Ultrasonic Cleaners / denture Ultrasonic Cleaners Specifications: Ultrasonic Frequency42,000 HzTank MaterialStainless ...