Household MIni upersonic Digital Ultrasonic Cleaner.suitable for laboratory, electronic workshop, mobile phone cases, ect. ... the MarketWide-Diameter Transducer for Best Cleaning ResultApplications:Jewelry Ultrasonic Cleaner can be used for Jewelry and Watches Necklaces, Earrings, ... Personal Care: Dentures, Combs, Toothbrushes, Table Wares. Digital Ultrasonic Cleaner with 5000 CE Approval