Perhaps one of the most innovative (read: useless) boomboxes is Aiwa’s <i>Rusuban</i> CS-TW80. This sleak little model from 1987 was equipped with AM/FM and TV sound, dual cassettes and two RJ-45 jacks in the back. What for? For the telephone answering system, of course! That’s right, the CS-TW80 connected to your phone line to record incoming calls onto cassette.