support support 20 point computer touch operation

Support image zoom in, zoom out, and rotate

Touch function can be used after each signal source is switched  Support each source display state,by touching the control signal source,like a volume control menu system.

1. Full-channel touch switching,touch menu,touch menu one-key ECO screen to save energy

2. 4K high-definition display, multi-party signal input HDMI, VGA,RS-232, suitable for teaching training and other commercial market applications.

3. Whiteboard writing,l support single-point and multi-point,writing and drawing to increase the pen sharp writing effect ,etc support the white board to insert ppr video, picture, add page, gesture board,zoom in out and roam, scan code sharing and also Export white soft files as PPT or word documents

4.Support multi-screen interaction. multi-screen projection and windows confidentiality extension, multi-function mobile phone projection.