A quick, safe and simple solution for cleaning your jewelry, coins and more. Cleans and sanitizes with only water and ultrasonic waves. No cleaning solutions or chemicals are needed. Just fill with water and switch on to clean. Operates with 4 AA batteries, not included. Jewelry and contents not included. Weight 0.6 pounds. 4.75" x 4.75" x 4.25. Plastic. UPC Number: 841437112269.