The X319USTe, is perfect for businesses, schools and colleges. It is bright (3300 lumens) and a throw ratio of 0.33:1 means that it can project a 100” image from less than 0.5m away. And having the projector installed so close to the screen avoids any shadows being cast across the screen from the presenter(s).It provides a complete package for engaging learning with many new features, including two HDMI inputs, powered USB port, powerful 16W built-in speaker, improved lamp life, compact chassis and a completely new mounting system for a fast and simple set-up.With an ultra-short throw lens, you can project an impressive image greater than 100” from just 55cm away. This allows you to place the projector closer to the wall, reducing shadows so you can present with ease; perfect for interactive applications. Add more depth to your image with a high contrast projector; with brighter whites and ultra-rich blacks, images come alive and text appears crisp and clear - ideal for business and education applications. Optoma projectors can display true 3D content from almost any 3D source, including 3D Blu-ray players, 3D broadcasting and the latest generation games consoles.The built-in speaker offers excellent audio support. Easy to set up without the need for costly external speakers. Stay in control of your presentation with Eco AV mute. Direct your audience's attention away from the screen by blanking the image when no longer needed. This also reduces the power consumption by up to 70%, further prolonging the life of your lamp.Using the specially designed lamp modes, you can reduce the power consumption by up to 70%. Each mode also has a positive effect on the lamp life, while lowering the total cost of ownership and reducing maintenance. This feature allows the projector to be instantly powered on again, if it is accidentally switched off. There may be instances when the projector is left running when not in use. To help save energy if the projector is left running and no source is detected, the “Auto power off” feature automatically turns off the projector after a set period of time.Reduce the number of lamp changes with lamp life of up to 6500 hours.Keep your audience’s attention focussed on the right things using the simple, yet powerful remote with USB mouse control. Give powerful presentations and educational lessons with stunning colours. Optoma projectors provide you with reliable colour performance suitable for any content and environment. From accurate sRGB colours for true life like images to vibrant punchy presentations. We have a display mode to specific meet your needs.Use the USB-Power to power an HDMI dongle, such as Google Chromecast or the Optoma WHD200 wireless HDMI device.Ultra Short Throw XGA projector, 1024 x 768 native resolution, 3300 ANSI lumens, 18000:1 contrast ratio, up to 7,000hrs lamp life, DLP technology, 3D ready, 16W speaker, connections: 2 x HDMI (1.4a 3D support), 2 x VGA (YPbPr/RGB), Composite, 2 x Audio In 3.5mm, Audio Out 3.5mm, VGA Out (Shared with VGA2), RJ45, RS232, USB remote mouse/service, 12V trigger, Mic In, 3D-Sync, USB-A Power