1. RF = Radio Frequency
Current that is classified by high amplitude over 100,000Hz

2. Principal
If applying the high frequency current into the tissues of human body, the vibration current energy w ould be changed into a heat energy without any ion movement since the range of vibration is very short. So high frequency current has a deep thermal effect that can heat a particular parts of body w ithout any stimulation of nerves.

3. Features
Since it doesn’t stimulate any nerves, it doesn’t bring any discomfort or muscle contraction. It can affect muscles & union tissues connected with muscles as well as skin & subcutaneous tissues with long Herz from 3cm to 300m.

4. Effects

	With increase of temperature in the tissues, it arouses the increase of the blood circulation so it promotes the metabolism.
	With a promotion of metabolic rate of cells, it increases the restoration capability of skin tissues.
	Since it changes the physical characteristics such as a viscosity & elasticity of the union tissues of skin, the expansibility of fiber tissues would be increased.
	It has an effect on pain relief and muscle relaxation.