General description Professional ultrasonic jewelry cleaning machine that effectively cleans dirty jewelry in minutes using only tap water. For enhanced cleaning results, you can add some dish soap or a professional cleaning solution. This machine is designed for all-round cleaning, reaching hard-to-clean areas without damaging your valuables. Technical specifications Ultrasonic frequency: 47,000 Hz Voltage: AC 110-240V Size: Length approximately 21 cm Material: 304 stainless steel Plug Type: US Plug Usage Easy to operate with a one-touch button and indicator light. Automatically cleans items in 5 minutes. Suitable for cleaning jewelry, glasses, coins, keys, and other items that are difficult to clean by traditional means. No harsh chemicals are required, making it safe for your valuables. Other information Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.