... tighten,whiten,rejuvenation 3.Weight Loss, Wrinkle Removal 4.OEM Radio Frequency Beauty Equipment (RF)Theory of RF MachineMonopolar RF takes that ... attains skin deep, stimulates inner ion of body, colloid granule with electricity will be forced rapid movement, vibration or attrition, then ... convenient.3. Special design on RF heads: It equipps with different sizes of RF heads, suitable for face skin or ...