Ultrasonic Cleaner Features:1.Tank capacity:600ml Power: 30W2.40Khz operating frequency3. ... .Remove dirt, dust, grease from the tiniest of places using ultrasonic technology7.Perfect machine for jewelry, glasses, circuit boards, ornament, ... headwear, brooch, pen, CD, toothbrush, flase teeth, milk bottle, fruit, clock, exact instruments,etc.