An audio recorder is a device which records sound to magnetic tape using a microphone. An audio cassette recorder is used by helicopter pilot R.J. MacReady during the 1982 film The Thing to record a series of tapes detailing the events at U.S. Outpost 31. Similar devices also appear in the 2002 video-game of the same name, where they are scattered throughout the levels and are used to save the player's game progress.
MacReady's cassette recorder, as seen in The Thing (1982).
Audio tape recorder, as seen in The Thing (video-game).