projector screen,interactive whiteboard ,electronic interactive whiteboard ,education equipment Feature Hardware Features: ... various circumstances: Control Mode, Window Mode, Annotation Mode, and Full Screen Mode; 4 Practical functions. In addition to writing and drawing ... -1500-148148701432×1060151×116×164562PH-1500-158158751543×1144173×133×165272 Projector screen, whiteboard, smartboard,PH-1500-101