> Specifications It looks like an eyepiece. It can be easily inserted into Eyepiece tube of microscope. The digital micro-image is immediately picked up by computer. It is used in the field of image demonstration and analysis/application USB Is Used to Adapt with PC.It is Freely  Plugged and Unplugged High Resolution CMOS Chip. 640×480 Piexl, Supplies a Nice Image on PC Monitor