... of tightening and whitening, on the other hand, bio-polar RF release about 10 MHZ radio wave, high frequency vibration makes ... -light Technical Advantage1. Applying all the advantages of IPL and RF technique, treatment effect is more conspicuous2. 8.4 "TFT ... short treatment time, quick effect, and long maintenance. 6. Safety, with corium cooling system of pertinency adjustable. 7. Double hand piece ...