... Cavitation, RF,Vacuum, 635nm Diode Laser four technology in one machine, achieve the slimming plus tighten skin perfect effect one time ... of skin and people.3.USB updating Technology,operating the machine and computer at the same time, easy to save ... the newest slimming technology , it combine four technology in one machine, to achieve slimming and tighten skin together! Ultrasound cavitation process ...