... smooth, reliable cutting, accurate trimming, no deformation, no raising, fuzzing, spinning, wrinkling etc. It can avoid the rough cutting-edge, coked ... . mooth, reliable cutting, accurate trimming, no deformation, no raising, fuzzing, spinning, wrinkling Parameters Frequency20Khz 28Khz 40KhzPower500W 1000W 2000WPower ControlStepping or continuousUltrasonic ...