I had certain expectations of an ultrasonic cleaner. But so far all have been disappointed. I've now tried determined 20 different things clean (er) to get glasses, jewelry, toys, money, keys and whatnot. I got it with warm water trying water with detergent, extra cleaning liquid ... The only thing that happens is that the water is easy ruffles and the machine hums to himself. What do I get out afterwards is not noticeably cleaner than before. Only wet ...