The ViewSonic PA505W WXGA DLP projector offers impressive audiovisual performance for presentations in the meeting room and in the classroom. Packed with 3500 ANSI lumens of brightness and a 22,000:1 contrast ratio, PA505W is guaranteed to display the finest of details, even in brightly lit environments. Dual HDMI inputs enable multiple users to connect laptops and mobile devices simultaneously for a high-definition experience without lapses of time between presenters. Additionally, the projector’s integrated USB power supply can be used as a power source for any HDMI connected dongle. PA505W’s audio is powered by ViewSonic’s specially tuned SonicExpert^® technology to deliver room-filling sound. When you’re done using the projector, the auto power off function can be used to power off your projector instantly to reduce energy consumption and extend lamp life.