42 KHz ULTRASONICThis ultrasonic cleaner uses 42KHz ultrasonic vibrations to create cavitation bubbles and clean objects with liquid. The stirring creates high pressure on contaminants that adhere to objects such as metals, plastics, glass, rubber, and ceramics to gently remove dirt in minutes without damaging your valuables.FIVE-SETTING TIME CYCLES5-time cycles are provided (180 s, 280 s, 380 s, 480 s, 90 s), you can choose different settings depending on different material of the object (The standard cleaning time is 180 seconds). Press the "Reset" button and change the time period.DETACHABLE BASKET & AUTOMATIC SWITCH This household ultrasonic cleaner has a capacity of 600ml and comes with a removable cleaning basket that's big enough to hold your daily necessities. It turns automatically after each cleaning cycle to avoid excessive power consumption.WIDE APPLICATIONUltrasonic cleaners are used to clean many different types of items including jewelry, lenses and other optical parts, clocks, dental, surgical instruments, tools, coins, fountain pens, etc.; Ultrasonic cleaners are used in many jewelry stores, watchmakers, and electronic repair shops.Warn Tips1. Do not place the cleaner in a damp environment2. Do not turn it on if you do not fill it with water3. Please do read the user manual before using it4. Do not clean glass/ sunglass with the protective film to avoid cleaning the protective film during the cleaning process. This product is suitable for cleaning ordinary glasses5. If you are not sure about whether or not you should use the ultrasonic cleaner on your specific type of jewelry, please consult your jeweler