Vdink interactive flat panel has unlimited writing function. You can write on the blackboard in the classroom, and make comments and key points in any interface of Vdink interactive flat panel. At the same time, the content of the blackboard in the classroom Vdink interactive flat panel can be automatically coded, and it can be taken away by scanning the code on the mobile phone. It is easy to take away all the key content in the classroom, which is more comprehensive and convenient. The smart board also supports wireless screen projection. The smart board’s screen transmitter can realize the same screen display of the mobile phone and tablet computer, and the smart board can also control the computer in reverse, which is convenient for teachers to carry out education work intelligently.