Close-up of a multi-media projector mounted on the ceiling of a classroom.

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Size: 3944px × 2620px
Photo credit: © Sylvie Bouchard / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: acoustic, attached, bolted, business, ceiling, class, classroom, close-, college, glass, lamp, light, lumen, lux, media, meeting, mounted, multi-media, plastic, powerpoint, presentation, projector, room, school, show, slide, technology, tile, university, view, wire