This projector’s extra wide angle lens allows it to be mounted very close to the projection screen. This avoids the problems of the projector’s light shining into the teacher’s eyes, and shadows on the screen when someone walks in front of the projector. This makes it practical for daily use, such as in digital whiteboard applications. The projector is bright enough for even large classrooms, especially when coupled with a separate audio system. The projector works with dual intractive pens in digital whiteboard applications. This projector requires a special mounting arm above the projection screen to achieve the short throw benefit. The projector throws a diagonal projected image of 40 to 300 inches with an adjustment range of 11.6 to 101 inches from the screen.