... frequency ultrasound Cavitation, RF,Vacuum, 635nm Diode Laser four technology in one machine, achieve the slimming plus tighten skin perfect effect ... laser is the newest slimming technology , it combine four technology in one machine, to achieve slimming and tighten skin together! ... OEM&ODM service for distributor.Training: After you get the machine, there is user manual, maintain manual, training CD ...