The 808nm semiconductor laser system uses a gold standard laser with a wavelength of 808nm. The semiconductor laser emits near-infrared light waves, which can penetrate into the root of the hair follicle, heat the pigment and spread it to the whole hair follicle, which can accurately destroy the hair follicle without damaging the adjacent tissue. Achieve hair removal. The advanced sapphire contact cooling system allows the treated skin to enjoy cool and comfortable, large spots and high frequency treatment for all parts of the body and all skin tones. 4 Different Spot Sizes Treatment Heads Changeable on One Handle •Gold Standard Working Energy - 10J+5ms. •Super Short,Pulse Duration •Super Long Life Span •Super High Power Application: Different spot size, suitable for whole body hair removal: Face: 12.5*14.5mm or round 8.5mm Nose hair: round 8.5mm Armpit：12.5*14.5mm Mustache：12.5*14.5mm Forehead：12.5*14.5mm Chest: 12.5*38.5mm Back:12.5*38.5mm Bikini line：12.5*14.5mm Arm: 12.5*28.5mm Leg: 12.5*28.5mm