... and normal skin. Under the circumstance of low light energy, it strengthens target texture to inhail radio frequency, ... Spot size: 8*40mm2, 10*30mm2 or 15*50mm2 Energy density: 1-50J/cm2 Pulse frequency: 1~4S, adjustablePulse ... )LanguageEnglish,Spanish,France .Italian ,German,ChineseRF systemRF frequency10MHZEnergy density:1-20J/cm2Output mode:BipolarEnergy2~300J, adjustableHandle cooling temperature ...