... technology 3 heads for eyes,face and body RF skin tightening machine,vacuum&RF&laser 3 in 1 system,for skin tightening,skin ... the skin is sucked in, the frequency of 1-2.66MHz bipolar RF will heat the dermis and subcutaneous fat layer.After ... )RF frequency1-2.6MHZLaser wavelength650nmLCD touch screen size 8-inchPower150WVoltage220V/110VPost-sale serviceAs for our service, we supply 2 years guarantee ...