At the same time, the infrared electronic whiteboard will be interfered by the strong light in front of the screen. The basic annotation and painting function can realize screen annotation on any computer interface. The shape of the pen can be ordinary pen, typesetting pen, brush, etc. The color of the marker can be set at will. The content of the marker can be erased at any time by using electronic eraser. The content of the marker can be saved and printed at any time;

The advantage of infrared electronic whiteboard is that direct handwriting or any object can replace the effect of pen. The operation feeling is somewhat similar to that of IPAD. It is widely used in preschool education, business and other fields. It can't provide the accurate writing effect of blackboard writing. When writing, one stroke must be made. At the same time, wrist or other objects entering the infrared frame range will cause misoperation.