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Optoma's 1080p ultra short throw projector, the EH319UST, is perfect for businesses, schools and colleges. It is bright and a throw ratio of 0.25:1 means that it can project a 100" image from just 55cm away. And having the projector installed so close to the screen avoids any shadows being cast across the screen from the presenter.
It provides a complete package for engaging learning with many features, including two HDMI inputs, powered USB port, powerful 16 W built-in speaker, improved lamp life, compact chassis and a completely mounting system for a fast and simple set-up.