answer: he is standing on a chair vacuuming it .
question: can you tell what the man is doing at the desk ?
answer: he just cleans the desk .
question: is he cleaning a computer .. or just the desk ?
answer: they look like monitors to me .
question: what are those large rectangular boxes ? speakers ?
answer: please ask one question at a time . he exits the camera frame .
question: where does he go ? is anyone else there ? at the end i just see an empty room . ?