Here is a perfectly preserved sony walkman from 1987 - maximum effort and all. https://collections.vam.ac.uk/item/O315300/walkman-personal-radio-cassette-sony-

Here is a perfectly preserved sony walkman from 1987 - maximum effort and all. https://collections.vam.ac.uk/item/O315300/walkman-personal-radio-cassette-sony-corporation/ https://collections.vam.ac.uk/item/O315300/walkman-personal-...