Unique body designed. Advanced optical touch technology. Modular designfor easy upgrade access. HD Led Low-energy ... ×1,MIC×1Windows LanguageEnglish ( system language)IR Touch SystemTouch TechnologyInfrared Single point (Multi touch include 2point, 4 point etc optional)GlassTempered glass ... :40KGContainer Qty130PCS/20'GP; 320PCS/40'HQAccessoriesRemote Control, Driver CD, Touch Pens /2pcs, Cables