Professional Ultrasonic Jewelry and Eyeglass Cleaner Cleaning Machine, Blue Powerful unit that gently cleans in minutes without damaging delicate items 42,000 cycle ultrasonic energy wave feature cleans dirt, dust and grime away Creates millions of microscopic cleansing bubbles; Simply fill the tank with water and and get professional cleaning results Automatic three-minute cleaning cycle and auto shut-off; Quiet operation, Solid State circuitry, and extremely easy to use Stainless steel cleaning chamber tank; Detergent can be added to water for enhanced cleaning; Also cleans tarnished items