Different frequency of ultrasonic exerts influence on different size of stain cleaning effect. The ultrasonic cleaning machine with sweep frequency is possessed of a wider cleaning range and stronger cleansing power.Wide ApplicationUnique designed. It's not only a ultrasonic cleaner machine for cleaning glasses, but also prefect for jewelry, clocks and watch, makeup brush, the coins, or lab instruments and more.Easy to Use 3 Minutes Auto Deep Cleaning You don't have to wash the Glasses by hand and thereby, saving enough time and energy. More importantly, in this way, there is no need to worry about losing or scratching lens during the cleaning process.User-friendly DesignIndependent power interface& Separated power cord, high safety performance. High-quality inner container & 304 stainless steel materials with safety, durability & corrosion resistance.Power (W):9;Voltage (V):110V/220V;Capacity:320;Plug Type:US PLUG, EU Plug;Application:Household;Power Source:Electric;Inner Tank Material:SUS304;