1.Skin lifting,wrinkle removal,tightening 2.Online after serive 3.Wind cooling+water cooling+semi-conductor cooling 4.CE OEM R2-Renata rf wrinkle removal & skin tightening ... and effort in developing the series of Q switch laser machine,IPL,RF, Elight, Long pulse laser ,Er Glass fractional laser and ... .4. After two years, we offer to repair the machine, but we quire for the cost of the changed parts ...