Epson's EB-475Wi you can easily achieve a large projected image size of up to 100 inches/245cm that's fully interactive right up to the corners. Thanks to the ultra-short-throw design you can project a 46-inch/116.8cm image from just 27cm away and annotating can easily be done without casting distracting shadows.You're in controlThis is Epson's first interactive projector to feature two digital pens that allow teachers and students to work together at the same time. These pens are more responsive and easier to use than previous models thanks to the new 'hover' function that accurately detects the position of the pen when not in contact with the projection surface. The automatic calibration and the driver-less installation means that set-up is extremely fast and easy