1,mini ultrasonic cleaner,LK1000,35W 2,Working life: 3000 hours ... tunable from 20 to 80 The features of specification:(mini ultrasonic cleaner,LK1000,35W)ModeLK1000Power35WFrequency42KHZVoltage220VInner groove size150*95*52mm The ... bronze ware, antiques, Jewelry, rings, diamond, bracelets,watches3.eyeglasses, sunglasses, optical lenses, tattoo instruments, and piercing.4. shaver head, razors, dentures ...