Epson EB-X51 3800 Lumens 3LCD Projector: ● Projection Technology : RGB liquid crystal shutter projection system (3LCD) ● White and Colour Brightness at 3,800lm ● XGA resolution (1024 x 768) ● High contrast ratio of 16,000:1 ● 12,000 Lamp Hours ● Built-in 2W Monaural Speaker, ● 3-in-1 USB Display, USB A & B port, HDMI port, Optional wireless (ELPAP10) ● Home Screen Function, Multi-PC Projection