1、Fast assembly, not easy to shake during use, you can use hex bolts to manually adjust the height and various angles of the bracket, tighten to avoid loosening. 2、The distance between the stand and the desktop can be changed to enlarge the document, and the stand can be easily folded for storage. 3、The high‑definition image sensor improves performance at a speed of 0.7s, and the focusing speed is fast. 4、Better noise reduction in low light conditions, excellent color reproduction, reducing interference, distortion and delay. 5、The screen can be steplessly rotated or rotated by 90 degrees, and the displayed content can be centered at the point where the mouse is located, and stepless and freely zoomed up to 1500% in real time according to a 1% gradient.