With an eyepiece set at a comfortable 45° angle and broad magnification range, Celestron Lab's CM400 Compound Cordless Monocular Microscope is ideally suited for students and hobbyists alike. Its three-position turret holds the 4x, 10x, and 40x objectives and the instrument comes with a 10x wide-field eyepiece that produces magnifications from 40x up to 400x. The 3.5 x 3.5" stage has metal slide/specimen clips and a 6-position rotating disc diaphragm. Dual LEDs provide upper incidental and lower transmitted illumination with separate dials to control their variable intensity. It is powered by either three included AA batteries for use in the field or the AC power adapter that comes with a set of four outlet plug adapters for both domestic and international use.