1,Handheld optic fiber inspection microscope 2,400x / 200x 3,AAA batteries 4,Convenient & portable 5,1.0um resolution Hand Held Optic Fiber ... Inspection Microscope, FK-H400 Model :FK-H400, ... 400X or 200XKey Features:1, Handy type microscope operated with three AAA batteries.2, Two magnification types are ...