... -Circuit Design, Keep Water Away for Enhanced Safety· First Ultrasonic Cleaner to Introduce Cooling Fan for Prolonged OperationApplicationsProfessional Cleaning Great Cleaning ... Straps and Bands, Glasses, Dentures, Toothbrushes, Table-wareSpecifications Ultrasonic Frequency42,000 HzTank MaterialStainless Steel SUS304Tank Capacity2500mlQuiet, Solid States CircuitryTimer5 Cycles, with Digital Time ...