32 interactive screen.2. On-screen writing with high-precision positioning resolution ( 4096 * 4096 ) and fast positioning response speed ( 11 milliseconds) ensure smooth writing on the screen. The screen can write directly without the need for a special writing pen . The pen color is optional. Adjustable thickness, provide hard pen, brush, highlighter and other status options. The eraser supports point erase, line erase, and erase . Built-in various teaching aids, such as triangular plates , rulers , compasses, etc. , and a graphic library is available It is convenient for drawing . It is equipped with auxiliary functions such as sliding screens and spotlights, which is convenient for teaching and training applications . It provides unlimited board area and writing is not restricted by the screen. They can be edited and saved at any time, and the writing content can be arbitrarily enlarged, reduced, dragged and deleted . 3. Multifunctional integrated design does not need to consider the complicated wiring between devices, simple installation, stability and reliability are more discrete Conference equipment greatly change good; can also be placed on a wall bracket convenient professional moves, does not occupy space, and stable appearance with various ring tones may be room Integration, enclosed dust-proof design, maintenance-free . Variously connection port, plug and play connection to commonly used office equipment such as computers, projectors, camera / video recorders, digital cameras, audio, microphone, tape recorder, network Server, etc., also built in