"File Number Six, section forty-six, subsection six, paragraph five. Over whelming sense of importance. While here his ego-mania if anything has increased." No.2's recording device, doesn't look like any recording device I recognise from the 1960's, it's too small for a start especially when compared to the Professor's tape recorder. The only explanation I have for No.2's recording device is, that's it's a digital recorder!
or maybe it's only a microphone and the audio is stored centrally?
That's an idea, hadn't thought of that.
Very kind regards