Large projections You can easily achieve a large projected widescreen image of up to 100 inches wide from a very short distance thanks to the EB-485W's super throw ratio of 0.27:1. Easy installation Epson has designed this projector to be quick to set up & easy to use. You simply turn on & plug in with the USB (Universal Serial Bus) functionality. Horizontal keystone correction enables you to easily align straight images & it also has a 16W built-in speaker, so no need to attach to external audio devices. It is delivered with its tailor-made wall-mount for superb integration in the room. Easily controlled The EB-485W can be turned on & off with a wall switch using the direct power on/off function, & with quick-start & instant-off functions, no warm-up or cool-down time is needed. For convenient wall-mounted control at the front of the classroom, the projector can be connected to the Epson ELPCB01 Control & Connection Box. Low costs Running costs are kept low thanks to a long lamp life of 4, 000 hours or four years*1, in eco mode, & 5, 000-hour filter life. High-quality images Epson's 3LCD technology ensures high-quality images with its equally high White & Colour Light Output for vivid, natural colours & deep blacks, even in daylight. Presentations can be more engaging by plugging in the Epson ELP-DC06 USB (Universal Serial Bus) Visualiser to show 3D objects close-up while the HDMI input also means high-definition content can be displayed with maximum clarity.