The Silk'n Infinity Premium is an IPL device with up to 500,000 flashes of light; enough to depilate for a lifetime. It works very easily. You start by placing the skin sensor against your skin. This sensor then sets one of the five positions that best suit your skin type. Then you start with depilation. Thanks to the glide function, this goes extra fast, since it is not necessary to remove the device from the skin after each flash. For a smooth result you have to plan the treatments well. But do not worry, with the bluetooth app this is very easy and do not skip treatment.