... Multi Touch Screen 1. drag, draw-line, rotate, zoom in/out 2.Withstands severe environments 3.Stable, no-drift etc. ETWOTOUCH ... -based training Advantage --Multitouch,support 2-32 points--Size(32”-200”),Max length:90 meter,customation is available)--Rapid response speed ... 40 inch IR multi touch screen overlay kit Size(32"-200"),Max length:90 meter,customation is available) Etwotouch