Bright, vibrant and portableProject bright, vibrant presentations effortlessly any time of day. Designed for meeting rooms and classrooms, the S331 boasts sRGB accurate true to life colour reproduction, long lamp life and energy-saving features to provide you with a low overall cost of ownership.This projector is easy to setup with two HDMI inputs, MHL, USB Power and a built-in speaker - perfect for connecting HDMI dongles such as the Google Chromecast and the Optoma HDCast Pro (sold separately) or a laptop, PC or Blu-ray player for clear projected images with sound. The portable and lightweight projector can be installed or taken on the move for off-site meetings with the optional carry bag (sold separately).Amazing coloursGive powerful presentations and educational lessons with stunning colours. Optoma projectors provide reliable colour performance suitable for any content and environment. From accurate sRGB colours for lifelike images to vibrant punchy presentations. We have a display mode to specific meet your needs. Perfect for a range of graphic and video presentations.3200 Lumens , Contrast ratio;22000:1,Resolution SVGA 800 x 600, efficient lamp for up to 8,000 hours. Connectivity I/O; HDMI v1.4a x 1, HDMI/MHL x 1,Audio out x 1, USB Type A (forservice/mouse/power) x 1,FULL 3D https://www.optomaromania.ro/product-details/s331 Brand Optoma SKU 100378175_NP-1020658176 Model S331