... itself, the cooling system is force wind cooling system and airtight water circulation cooling , extend the continuous working timefor ... 0-5°C temperature,making the patients more comfortable and avoid the hurt for skin. Different wavelength for different treatment ... . telangiectasia, hemangioma, varicose veins, etc. *640nm-1200nm for black and rough hair removal (body, underarm, arm, leg, bikini line, ...