ID 170800890 © Chernetskaya | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
action audiovisual background black business cinema classroom conference demonstration design device digital education electronic entertainment equipment home isolated lamp lcd learning lecture lens lesson meeting mini modern movie multimedia nobody object office presentation professional projection projector school study system technology video visual white