Suitable cleaning frequency, this ultrasonic cleaning machine is suitable for working at a frequency of 45000Hz/s. At this frequency, jewelry can be thoroughly cleaned and is absolutely harmless to users. Durable materials, this ultrasonic cleaning machine is made of high-quality materials, which are durable, sturdy, safe, corrosion-resistant, rust resistant, reusable, and durable. You can safely use any ultrasonic cleaning machine/solution. This professional ultrasonic jewelry cleaner is easy to use. Users only need to plug in the power and turn on the start button. We recommend that users do not wash jewelry or glasses for more than 5 minutes to achieve the best cleaning effect. We also recommend that users add 1 to 2 drops of detergent to the water to achieve better cleaning results. Powerful sound waves and ultrasonic waves penetrate gaps in multiple dimensions, and high-frequency 360 scanning can clean areas that are difficult to clean. This jewelry cleaner can be used to clean jewelry, rings, glasses, dentures, watch coins, and more. It can be used as part cleaner, eyeglass cleaner, circular cleaner, and denture cleaner. Package includes: 1 * cleaning agent, 1 * USB cable Attention: 1. Due to manual measurement, please allow for minor errors. Please ensure that you do not mind before bidding. 2. Colors may vary depending on the monitor, please understand. Hello, please pay attention to your shipping address when purchasing products. If your delivery information (such as name, street, house number, doorbell/email without a name, etc.) is incorrect, the order will not be delivered correctly