This personal ultrasonic cleaner can be used to clean: Jewelry Eye glasses Printer heads Dentures Electric shavers Artist pens Watch bands Tatoo instruments Fishing reels Small tools Small engine parts Bearings General cleaning----use only water Enhanced cleaning----add 2 drops of dishwashing detergent to the water 220 Volt 30 Watt, 40 kHz Container size WxLxH = 9 x 16.5 x 4 cm (oval)