Theory: Video Microscope Drawtube: Monocular Theory:: Video Microscope Drawtube:: Monocular Light Source:: 8 LED Lights Magnification:: 25 X ~ 200X (Manual) Pictrue Ressolution:: 640*480 Focus Range:: 0-40mm USB:: 1.1/2.0/3.0 Warranty:: 12 months warranty Show More