【Professional】: Generates 42,000 Hz of ultrasonic sound waves, with 35W transducers for a powerful yet gentle clean that won't harm your valuables. Removable power cord, easy to replace water. Transparent lid-window let you watch the cleaning process clearly. | 【Digital Display and Touch Button】: Touch button enables super easy and smooth operation. Digital display with 5 preset cleaning cycles (90, 180, 300, 480, & 600 seconds) and auto shut off. | 【Perfect Size】: Generous 20 oz (600 ML) capacity adequate to thoroughly clean dirty jewelry, eyeglasses, watches, utensils in minutes, and won't take up much space. Perfect for home use. | 【Specification】: SUS 304 stainless steel tank provides good corrosion resistance, use any ultrasonic detergent / solution with peace. Designed with max water level line inside the tank for guidance. Package includes washing basket and watch holder to keep items secure. | 【Guarantee】We offer 12 months guarantee ultrasonic cleaner satisfaction guarantee. If you aren't satisfied, we'll refund you for any reason within a year of purchase. If you have any concerns, you're welcomed to contact us.