The W320USTi is perfect for businesses, schools and colleges. It is bright and uses an advanced TouchBeam finger-touch interactive technology, enabling several people to work simultaneously on the screen without using a pen. The optimal throw ratio allows it to project an image from less than 0.5 m away. And having the projector installed so close to the screen avoids any shadows being cast across the screen from the presenter (s). The projector provides a complete package for engaging learning with many convenient features, including two HDMI inputs, powered USB port, powerful built-in speaker, improved lamp life, compact chassis and a convenient mounting system for a fast and simple setup.