RF skin tightening machine 1.Multi RF heads 2.Wrinkle removal, skin lift, slimming ... body 4.CE certificate HR-802A Monopolar Radio Wave Frequency Machine,RF Skin Tightening MachineTheory of Monopolar RF MachineMonopolar RF takes ... diathermy;Blood vessel dilatation;Enhance oxygen fluid, advance oxygen-taking exercise, upgrade blood and lymphcirculation, exhaust toxin andwaste, activate metabolism; ...