Camera performs very vell, no video lag, software is simple and easy to use. "Function" in order choices possibly refers to the software ability to measure distance. I expected this camera to have autofocus, but mine came without it. However, for this price I cant complain about manual focus.
The camera arrived quickly and works very well, though it lacks the autofocus of some other variations. JPEG snapshots work perfectly. The H.264 video files it produces are malformed as is usual with Eakins cameras but "ffmpeg -i bad-input-video.h264 good-ouput-video.mp4" fixes a malformed video nicely.