Full-wave technology for gentle and thorough cleaning with ultrasonic waves and 5 cleaning intervals, e.g. B. for jewelry Ultrasonic Frequency: 46000Hz Approx. 600 ml stainless steel tank With viewing window and lighting during the cleaning process For glasses, hearing aids, CDs/DVDs, watches, metal jewelery and much more. Gentle and effective cleaning An ultrasonic cleaner uses sound waves to clean small and fine objects. They create tiny bubbles in the water that burst. The resulting energy and water power acts like a mini high-pressure cleaner and flushes all dirt particles from even the smallest cracks of objects.