Features:
3.5X to 45X Continuous Zoom Magnification Power
45-degree Inclined Trinocular Head with SUPER WIDEFIELD High-Eyepoint Eyepieces
Trinocular port for adding photo or video capability
Simul-Focal Optical System Allows Simultaneous Observation Through Both the Eyepieces and the Trinocular Port
Have well-focused, clear images on your PC or video Screen AND through the microscope eyepieces at the same time.
No need to switch between the trinocular port and the eyepiece
No need to re-focus the microscope after each "switch"
30mm Super Widefield WF10X Eyepieces with 20mm Field of View
High Resolution with Great Flatness and Contrast
Sharp Stereo Erect Images over a Wide Field View
Crystal Clear Original True Color Images
Both Ocular-Tubes with Adjustable Diopter
Large Working Distance
Accurate Alignment Ensuring a Fatigue-Free Viewing
Full Optical Glass Element
Precise Ground Glass Lens
All Metal Mechanical Components
Adjustable Interpupillary Distance
Rubber Eyeguards Include
The model is Simul Focal as follow :

Specifications:
Head: 45-degree inclined 360-degree swiveling trinocular
Eyepiece: 30mm super widefield high-eyepoint WF10X/20
Auxiliary objective : SZM0.5X WD165mm
Objective: 0.35-4.5X
Zoom Range: 13:1
Diopter Adjustment: ±5dp
Interpupillary Distance: 2-3/4" - 2-15/16"(47-75mm)
Field of View: 1-1/4" (33mm)
Working Distance: 6.5" (165mm)
Head Mounting Size: 3" (76mm) in diameter
Accessory Mounting Size: 1-7/8" (48mm female thread) in diamete

Packing list:
1X Trinocular Stereo Zoom Head
1 pairs of super Widefield 10X Eyepiece
1 X camera adaptor
1 Pair of foldable eye-guards
1 piece duts cover
User's Manual
Optional
One SZM0.5X auxiliary objective
Note:
The real color of the item may be slightly different from the pictures shown on web