Goplus 40X-2500X LED Lab Binocular Compound Microscope w/ 3-D Mech Stage Power supply: AC 110V 50/60Hz (US) Stage: X-Y mechanical stage with scales, translation range 80mm x 30mm, dimension 115mm x 125mm Mechanical tube length:6.3/160mm;Fliter diameter:32mm Horizontal movement range:30mm;Longitudinal movement range:70mm Package includes: One Binocular microscope Siedentopf head ,One Microscope stand and base, Four objectives: 4X, 10X, 40X(spring), and 100X(Spring,oil), One Pair of Widefield, 10X Eyepieces ,One Pair of Widefield, 25X Eyepieces, One Blue Color Filter ,One Dust Cover Sample Immersion Oil ,One User's Manual ,No USB Cable