Sharpertek CD-2800 Professional Ultrasonic Cleaner - Cleans Jewelry, Optics, Eyeglass, and Other Delicate Items + Blitz Jewelry & Gem Cleaner Ultrasonic Cleaner. Timer: 3-minute auto shut-off. Frequency 42,000 Hz. 110V 35 W. Stainless steel tank capacity: 600 ml/1.3 pint Unit size: 7.8"x4.9"x5.5". Gross unit weight: 2.4 lb. Warranty 1 year.