[IPL Technology ] This laser hair removal is designed with IPL medical treatmentt echnology. It emits IPL intense pulsed light to penetrate the epidermis and reach the hair follicle, which absorbs the energy to produce light energy and heat, thus destroying the activity of the hair follicle and achieving the effect of inhibiting hair growth.[Three-week Efficacy]Experience noticeable results in just three weeks. After three weeks of use, you will begin to feel that hair growth has slowed down and your skin has become smoother. And it also achieves long-lasting hair removal and reduce the chances of hair regrowth.[Economical & At-Home] At home laser hair removal allows you to get a more private and more comfortable permanent hair removal experience at home, you no longer need to go to the beauty salon or clinic to queue up appointments,saving money and time.Additional: a pair of goggles, a shaver, user manual is included with the device.Please check your skin tone and hair color whether applicable before order or consult the customer support.[Adjustable 5 Flash Modes] This hair removal has continuously play mode is suitable for large skin area, such as arms,legs,back.Single play mode is suitable for small areas such as fingers,toes.