The Ultrasonic Retainer Cleaner by Newelkin is a compact and efficient 48kHz denture cleaner machine that operates with a digital timer for precise cleaning. Its sleek black design and lightweight construction make it convenient for travel and everyday use. The non-toxic cleaner is reusable, eliminating the need for batteries, and comes in a travel-size package, perfect for on-the-go cleaning. This ultrasonic cleaner by Newelkin is an essential tool for maintaining the cleanliness and hygiene of dentures and other jewelry items.