... collage,tighten CE Bipolar rf ,tripolar RF,8 polar RF&Vacuum &40KHz Cavitation equipment Working Principle 1.Bipolar rf ,tripolar RF ... uses the strong ultrasonic head to shoot 40,000Hz ultrasonic, after entering the body, will make the fatty cells produce mighty ... the fat for directional movement, vacuum function can decompose the collagen and add it to the skin, to make the skin more slippery and ...