1， it supports multiple operating systems, such as Window, Mac, Android, Linux. And patented erasable surface board.

2， There are various dimensions and ratios,support 16:9,16:10,4:3,16:6 etc. Projection ratio. 

3，multi touch, 4 point touch to 10 point touch, many users can work on the board simultaneously by fingers without any area limitation. 

4，The board corner is available to be disassembled from the front. It's for easy installation and maintenance.  Meantime, it dont need driver, and just an external USB interface is used,plug and play.