This multi-function ultrasonic jewelry cleaning machine is perfect for keeping your jewelry looking like new. With dry battery installation and a voltage of 3V, it's easy to use and convenient for on-the-go cleaning. Made with durable PP material, it has a gross weight of 202g and a net weight of 155g, making it lightweight and portable. The product size is 18.8*7*7cm and comes with product packaging that measures 19.5*8*8cm. Ideal for jewelry cleaners and polish, as well as jewelry care, design, and repair. Its versatility makes it perfect for all kinds of jewelry cleaning needs.