The W319USTir 3300L WXGA Ultra-Short Throw Projector from Optoma is suitable for business and education applications where bright projection is required. It features a 3300-lumen output and 18,000:1 contrast ratio. The projector comes equipped with a powerful 16W speaker and a lamp with 6500-hour lifespan. With a throw ratio of 0.27, it allows for a 100" image to be displayed from a throw distance of just 24". The W319USTir's interactive IR Pens allow two individuals to collaborate and engage simultaneously with the presenter. The projector is compatible with Windows 8.1, Windows 10, and Mac OS X operating systems.