... using USB connection 0.35MP USB Portable Digital Zoom Spotting-scope is a digital compound spottingscope, ... on branch will not be interfered. Digital Zoom Spotting-scope is applied by scientist and amateur ... shoot,, full screen view.Image edit: picture turn, zoom, cut, modify, email, print SpecificationsSensor parameter1/4" 0 ... /s at 640*480 Preview model640*480, 320*240Pixel size5.6μm *5.6μmsensitivity1. ...