Total magnification: 40X-100X-250X-400X-1000X-2500X; Eyepieces: widefield WF10X/18 and WF25X; Objectives: achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil); Viewing head: 45 degrees inclined 360 degrees swiveling binocular; Interpupillary distance: sliding adjustment 2-3/16inch ~ 2-15/16inch (55~75mm) Total magnification: 40X-100X-250X-400X-1000X-2500X; Eyepieces: widefield WF10X/18 and WF25X; Objectives: achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil); Viewing head: 45 degrees inclined 360 degrees swiveling binocular; Interpupillary distance: sliding adjustment 2-3/16inch ~ 2-15/16inch (55~75mm) Total magnification: 40X-100X-250X-400X-1000X-2500X; Eyepieces: widefield WF10X/18 and WF25X; Objectives: achromatic DIN 4X, 10X, 40X(S), 100X(S, Oil); Viewing head: 45 degrees inclined 360 degrees swiveling binocular; Interpupillary distance: sliding adjustment 2-3/16inch ~ 2-15/16inch (55~75mm) Diopter: adjustable on both eyepiece tubes; Nosepiece: revolving quadruple; Stage: double layer X-Y mechanical stage with scales, size: 4-1/2inchx 4-15/16inch (115mm x 125mm); Stage X-Y stroke (travel range): 2-13/16inch x 1-3/16inch (70mm x 30mm); Condenser: NA1.25 Abbe condenser with iris diaphragm and filter holder, rack and pinion adjustment Illumination: transmitted, LED light, intensity adjustment; Focus adjustment: coaxial coarse and fine knobs on both sides; Stage upward moving lock protects objectives and slides; All metal mechanical components; 100-piece blank glass slides with 100-piece cover slips and 100-sheet lens cleaning paper included Power supply: AC/DC adapter, 7.5V/7.5W (UL approved) - Input: 100-240VAC, 50/60Hz, 0.5A Max - Output: DC7.5V, 1000mA 5-year warranty against manufacturing defects This is a package of biological binocular microscope with blank glass slides, cover slips and 4" x 6" lens cleaning paper booklet. It offers six level magnifications from 40X to 2500X. The compound LED microscope comes with a sliding binocular viewing head, two pairs of widefield eyepieces (WF10X, WF25X), four achromatic objectives DIN 4X, 10X, 40X(S), 100X(S, Oil), large double layer mechanical stage with scale, Abbe NA1.25 condenser with iris diaphragm, coaxial coarse & fine focus knobs and variable intensity LED transmitted illumination system. It easy to connect USB digital camera (sold separately) to record what you see in the microscope and saving it into your computer as a picture or a video clip. The compound microscopy is suitable for teaching demonstration, medical labs, educational lab environments, veterinary clinics.