LCD, XGA, 4100 Lumens, 16000 : 1 cont ratio, 2.9 kg. Feature : long life lamp up to 20.000 hours (eco), 1,2 zoom lens, Corner keystone correction, Curved screen correction, Memory viewer function, Wireless Module (Optional),USB display funtion, Blackboard mode, Direct Power Off, Start Up Logo, 1 VGA input, RJ45 for control & monitoring, 10 W speaker