... frequency of 450 kHz, the electric field changes its polarity 8,000,000 times per second. Responding to the rapid of ... probes 10mm,20mm,40mm,to treat on eye,face,body;2.Bipolar RF,be more effective and safety;3.Safety :non-operative ... makes operation be more comfortable.Specification RF10MHzOutput power100WTypeBipolar RFHandpiece1 bipolar rf headRF probes10mm for eye treatment 20mm:treat for face and ...