The VPL-EX225 is designed with lower total costs of ownership, reduced maintenance time, & increased energy efficiency, to offer highly flexible & high performance solutions for the education market. It offers XGA projection with powerful 2700 lumens color light output. Auto lamp dimming, long time synchronized lamp & filter maintenance timing helps reduce total cost of ownership. It is packed with diverse features to meet demanding A/V needs. The projectors 1.3x flexible standard zoom lens & variety of inputs allow the projector to fit a broad range of applications. High wattage 16 W speakers eliminate the need for external speakers. Remote control of multiple projectors can be performed via a LAN network. Users can also project images over a wired LAN or a wireless network. A USB (Universal Serial Bus) Media viewer allows users to directly project image files stored on a USB (Universal Serial Bus) memory device.