1,Handheld optic fiber inspection microscope 2,400x / 200x 3,AAA batteries ... types are available (200x or 400x).3, High intensity white LED for clear and enhanced vision.4, Detachable ø2.5mm ferrule ... Optic Inspection Microscope, FK-410PAdjustable Video Inspection Microscope, FK4-410P Handheld optic fiber inspection microscope FK-H400