I received this as a gift and already have one that I use all the time and I absolutely love it. I just add some dawn dish soap and warm water to the bin, put my jewelry in and within 3 minutes it is perfectly clean. Highly recommend! This one is still in the box and never opened. The Magnasonic Professional Ultrasonic Jewelry Cleaner Machine uses powerful ultrasonic cleaning technology to provide a brilliant deep clean to your fine jewelry, watches, coin collections, medals and other household items.