The W319ST is feature oriented projector, specially designed for business and education environments. This bright short throw projector has precision optics with an bright light source engineered to handle ambient light conditions. Essential capabilities such as USB power and network connectivity for more flexible operations are included. Short Throw Projector The W319ST offers big image in tight spaces, creating 100 inch projection images from just 1.1 meters away. More Effective Short throw projectors can be set close to the wall and eliminate the shadows, are the best solution for presentation scenarios. Bright 4000 lumens The best choice in medium-sized spaces with Optoma’s W319ST. Perfect for lights on viewing and a vibrant picture for all conditions. High Contrast Add more depth to your image with outstanding colors and exceptional black and white contrast performance. The image comes alive and text appears crisp and clear. Long Lamp Life Up to 15000 Hours With the specially calibrated ECO+ mode, you can reduce the power consumption by up to 70% and enabling a longer lamp life of up to 15000 hours meaning a very low total cost of ownership. 16:10 Aspect Ratio This projector has a 16:10 aspect ratio, and is the most commonly used with the latest WXGA or WUXGA notebooks. Powerful 10W Speaker A powerful integrated 10W speaker on this projector allows your content to be heard clearly and is easy to set up without the need for costly external speakers. USB Power The built-in USB power output (5V/1.5A) can be utilized to provide power for your streaming dongles such as Chromecast, HDCast Pro, or mobile devices. Charge your mobile devices simply by plugging in your USB charging cable. Split Screen (*Optional) With an optional HDCastPro dongle, it can be wirelessly connected to your laptop, tablet or mobile device and share your streaming videos, photos or documents to the big screen. Especially designed for business and education environments, up to 4 computers can project the content simultaneously. LAN Control The RJ45 port provides additional network controllability. Crestron RoomView, Extron’s IP Link, AMX dynamic device discovery and PJ-Link protocols are fully supported, allowing for any flexible networking solution. Low Noise Quieter than a Whisper, only 28dB noise in Eco mode.