Viewing Head: monocular vertical tube. Working Stage: working stage with slide clips. llumination: LED illuminated. Batteries Needed: 3 x AA batteries (NOT included). Suitable for: primary and secondary school students. Eyepiece: WF10X and WF20X Objective: achromatic 4X, 10X and 40X Relay Lens: 2X Optical Magnification: 40X, 100X, 400X, 80X, 200X, 800X, 160X, 400X, 1600X Package Included 1x WF10X eyepiece 1x WF20X eyepiece 1x 2X relay Lens 1x microscope main body with 4X 10X 40X objective 1x smartphone adapter 1 set of biological accessories Attention The cellphone and batteries are NOT included. The style of cellphone adapter will be shipped at random.