Celestron 44342 Round LCD Digital Microscope (Black) Digital biological microscope View with 2" LCD screen 24x to 240x Power and up to 1920x with 8x digital zoom Built-in 2mp digital camera 32MB internal memory Objective Lenses - 4x, 10x, and 40x USB 2.0 cable SD card slot Bottom LED illumination Slide holder AC adapter Five prepared slides Weight - 28oz (794g)