You must noticed that a lot companies has IPL+ nd yag+rf machine with 3 handles, but we are the only company that has Diode + IPL+ nd yag + RF with 4 handles. Because it is hard to combine diode laser with other systems, but we can do it, and we can do machine in very high and stable quality. And please see below introduction for each handle: Handle 1: Diode laser handle Permanently remove lip hair, beard hair, chest hair, armpit hair, limbs hair and unwanted hair on anyparts of body. Handle 2: Elight/IPL/SHR handle 480nm~1200nm:Acne therapy, freckle and facial blemish removal. 530nm~1200nm:Pigmentation removal, skin rejuvenation 590nm~1200nm:Vascular lesions improvement, enhance skin elasticity 640nm~1200nm:Hair removal, especially for black and rough hair removal 690nm~1200nm:Hair removal, especially for blond hair, slight and soft hair removal Handle 3: Q-Switch nd yag laser handle ①All sorts of color tattoo removal. ②Pigmentary skin lesions and mixed pigmentation, dermal spots, freckles, moles, rosacea, birthmarks, nevus of Ota. ③Effectively remove tattoos of embroider eyebrow, eye line, soak lip and lip line. ④Black facedoll treatment Attention: 1064nm laser is used for black, blue pigmentation. 532nm laser is used to remove red, coffee, brown pigmentatin. 1320nm laser is used for carbon piliing. Handle 4: RF handle ①Face lift ②Wrinkle removal ③Skin rejuvenation