~Our laryngendoscope is mainly made by of liquid indicator , electrical power management and system controlling circuit board , imagine system , inner electrical power , handle and electrical power adaptor and the disposable laryngoscope slice lens  , the illuminance is not less than 800Lux , while the  identification is not less than 3.51 lp/mm , the depth of the viewing the scene is not less than 3～85mm, there are three size of our laryngoscope slice lens L. M, and small, made of ABS material , it is non sterilization single useaage