... of vacuum 2.Top cut frequency can attach 2500CPM High-speed vitreous cutterYD7C adopts a variety of new technology, new parts ... out mirco-cutter with reducing the pulling of around tissues. @Audio system: According to the cutter frequency, the intensity of sound ... , and the output power can be adjusted for 5%~100% @Audio Frequency Clews: Vacuum Clew, Diathermy Clew, Warning Clew of gas ...