Software features: 1. Smooth writing without any breakpoint or sharp curve (even when you Draw randomly and fast with the mouse); 2. Fast erasion without any trace of marks (even when you draw randomly And fast with the mouse); 3. Smooth running of the computer and software with cpu occupation Percentage less than 15%; 4. Unique teaching mode synchronizing the traditional functions of blackboard; Design mode, annotation mode, screen mode to satisfy diversified demands; 5. Extraordinarily powerful ppt import and export function without changing the format of the original file; Hardware features: 1. Special board surface ink pen markable, scratch resistant, meanwhile, Ensuring no glare area; 2. Enabling any opaque object to write on the board; 3. Convenient intelligent pens and easy-to-reach intelligent pen tray holder (optional); 4. Module design of key electronic components (easy maintenance); 5. Customerized icons on the screen toolbars for convenient operation In wooden cartons