【Effectively Clean Stains】: This ultrasonic jewelry cleaner generates powerful and gentle sound waves, making the process an effective cleaning tool for items without damaging your valuables. (Note: Do not soak the operation button when pouring water, please pour the water from the left or right side of the cleaner) 【Widely Applications】: 600 ML capacity Ultrasonic cleaner use for clean Jewellery, eyeglasses, watch, rings, coins, dentures, and other small items,and can be used tap water fully submerged these small items, Please add detergent for enhanced cleaning 【Stainless Steel Tank】: Strong and durable 304 stainless steel tank, 40 KHz ultrasonic frequency and high-power ultrasonic transducer for superior cleaning effect 【Ease to Use】: Simply ON / OFF with light pressure, it will then make a light BUZZ sound. With reset function to restart the ultrasound device. 【Better Service】: We are committed to creating high quality and great design products. If you have any problems with the product or customer service, please contact us through Amazon. We will do our best to help you.