The carson mm-450 is a compact handheld microscope with built-in led illumination and 20 to 60x magnification. this makes this microscope great for observing even the smallest details, no matter where you are. Usage carson mm-450 With the help of this small hand microscope almost every detail is visible. by means of the button at the top you can switch the led lighting on and off. this way you can ensure that the object is optimally illuminated. by turning the upper ring the magnification can be adjusted, after which you can use the lower ring to focus the image, so that you can study the object even better. the manual microscope uses 1 aa battery (not included, optionally available), but when you do not use the led lighting it is not necessary.