ClearMax CD-2800 Ultrasonic Jewelry & Eyeglass Cleaner with BlowOff Duster Automatic three-minute cleaning cycle and auto shut-off; Quiet operation, Solid State circuitry, and extremely easy to use 42,000 cycle ultrasonic energy wave feature cleans dirt, dust and grime away Stainless steel cleaning chamber tank; Detergent can be added to water for enhanced cleaning Blow Off air dusters is specially formulated to clean and remove dust, dirt and microscopic debris from hard to reach areas