... angle varuous measure way, manual&auto two ways focus, Max object distance:0mm, portable model 1 ... Videogaphy:High compression 7. Light source:LED illumiantion (USB interface) 8. Video with Extra-long time-11hours ... 3.6GB of memory video 9. Focusing:Auto focus + Manual, resolution:1280*960,960*720,640 ... ×110mm 11. interface: USB 2.0 11 hours video-time, auto&manual focus portable zoom microscope digital ...