Infrared sensor technology 10 point touch with 64 points calibration.

Interface USB 2.0. International standard communication distance 1.5 m, supports 10-15 m.

Power consumption <100mA Operating system Win XP, 7 & 8 Operating temperature -20oC~65oC Support screen record (voice and text synhronization), support annotation and editing of files with word, PPT format.

Support lines, graphics, triangle. pentagons any polygon drawing and can rub, cut, clone, copy and delete any selected objects.

Support unlimited writing range by moving the pages freely.

Provide free lifetime online software upgrades, support various of operation system including windows 2000, XP, Vista, Windows 7 / 8 / 10.