1.Household or outfitter ultrasonic cleaner 2.Watch, glasses,necklace,ring,CD etc cleaning 3.CE&ROHS certification Ultrasonic cleaner has been proven to be the most efficient method of removing contaminants, such as grease, oil, wax, fluxes, fingerprints, oxides and other deposits-from visible and invisible surfaces, holes and cracks. In general, if an item can be cleaned with liquid, it can be ...