1. Applicable : 100~240V working voltage, suitable for all the countries in the world. 2. Painless: Five Adjustable optimal energy level according to the skin tolerance. Providing the gentle treatment painlessly and easily , without hurting the skin. The LED light clear shows the energy level. 3. Fast and big treatment area : wavelength 475-1200，3 cm² spot size not too big or neither too small for any body curve, high efficiency and fast speed that just takes several minutes to remove the overlapping regin hair which is difficult for traditional hair removal method. 4. Safe: No influence on normal sweat and sebum secretion. 5. Convenient: Portable dsign and easy taken.