• 4,700 lumens;• Native HD (1920 x 1080) resolution;• 10,000:1 contrast ratio;• Full 3D;• Max lamp life: 3,500/2,500 hours (std/bright);• Features DLP(R) technology by Texas Instruments(R);• 2 HDMI(R) inputs, display port, 2 VGA ins, VGA out, S-video, composite video, stereo RCA, audio in, stereo audio out, RS-232C, RJ45, 3D sync, USB & 12V trigger;• 3W speaker;• Weight: 8.2lbs;• Dim: 4.3H x 12.8W x 10.2D;• 3-year Optoma(R) Express service warranty, 1-year lamp warranty; HEIGHT X LENGTH X WIDTH: 4.29 X 10.19 X 12.8 WARRANTY: THREE YEARS RETURNABLE: Yes