When Ultronics UL3 units are activated, electronic energy produces 40,000 vibrations per second. This causes millions of microscopic bubbles to form in the liquid. When these bubbles collapse, they produce a "scrubbing action" called cavitation. Ultrasonic cleaning saves time by eliminating hand scrubbing and cleans tiny crevices and areas impossible to reach (even with a brush), including springs, firing pins, and other small parts. Using Ultronics' UL3 unit, most handguns are thoroughly cleaned within 15 minutes.