Monopolar, bipolar and BiClamp® modes which can be used in VIO®3 are useful for head and neck surgery. The preciseSECT mode of a monopolar device is able to reduce carbonization of soft tissues and to detach tissues with a constant pressure. As a result, it is possible to stop bleeding effectively. The softCOAG® bipolar mode has functions for coagulating tissues without carbonizing soft tissues under low-temperature heating and is able to stop bleeding satisfactorily. By using the autoCUT bipolar mode, coagulated vessels can be cut without scissors. With regard to the thermoSEAL® mode, after placing the BiClamp® handpiece into the proper position on blood vessels with surrounding tissues and pushing the pedal, electrocoagulation without carbonization of soft tissues starts. Vessels are surely sealed and it is possible to cut them by scissors. Quick and reliable hemostasis can be achieved by beginners as well as veterans by using VIO®3, classic suture ligation techniques during operation are decreased, and effective operation can be completed quickly.