... technology, large digital full HD display technology.1.All In One Multi Media , No need to connect other projector, computer . ... , touch , writing, drawing, annotation, spot light,mask, soft keyboard, medi play, record, etc. Touch Screen Display ParameterPanel size: 70inchResolution: 1920 ... Pen: 1pcsUse Manual 1pcs New 70 inch All In One LCD Touch TV PC Infrared Electronic Interactive Whiteboard