Video Visual Presenter

1,Using CMOS lenses, size >= 1/3 inch; level TV line >= 900 lines, effective pixels>=320 million, SNR>=50db, shooting range>=A4 format.
2,Optical zoom >= 22 times, electronic zoom >=10 times, lens vertical rotation>=330°
3,Light source: environmental protection with no wall lamp design, more convenient demonstration of the objects, the lens embedded green dual LED compensation light source.
4,VGA input / output interface: >= 1 road; audio and video input / output interface:>=1 road; HDMI HD input / output interface: >=1 road(optional); RS232 serial port >=1 road; USB interface >= 1 road(optional, can achieve USB annotation and mass storage function);
5,Basic function: manual/automatic focusing zoom, brightness/ sharpness adjustment, red/blue adjustment, manual/automatic white balance, black and white color switch, positive and negative, the same screen contrast, rotation, image freezing, image mirroring.