Description: This is a high-tech technology hair removal machine, it can remove unwanted hair from the root and restrict the hair growth, realize long term epilation. 5 light intensity levels for treatment of different epilation area, effective hair removal. High light energy of application area about 4.5cm, flexible operation, rapid and time saving. Safe machine with skin detection function, can detect skin types with which it is compatible. Fast and effective, only require 8 weeks of epilation thoroughly without hair growth. How to distinguish the lamps: Hair Removal Lamp: Additional small window below. Can be used 300000 Times Tender Skin Lamp: No additional small window. Can be used 100000 Times How does the light eliminate hair: Photo-epilation is based on the theory of selective photo thermolysis which uses optical energy to stop the growth of the hair. To obtain such thermal effects, the root of the hair must selectively adsorb the photo energy and transform it into heat. This selection is produced when most of the optical energy emitted is absorbed by the pigment of the bulb, while the surrounding skin and tissue remain cold. Melanin is the pigment found in the hair bulb, responsible for absorbing light, generating the heat that stops the hair growth. Also, the more melanin in the hair (ie: the darker the hair), the more light is can absorb and the more efficient photo-epilation becomes. How to use: 1. First plug in the power, the right indicator light is red, and then press the power button to switch to the left indicator light which turn into a blue light, this time that the product has been normal started. 2. Please put the laser head on the skin, until the left and right side of the indicator light flashes, which means the product is ready, press the button on the handle to work. 3. "+""-" for adjustment of the inten