Sony Walkman is a brand of portable audio cassette players that were popular in the eighties and nineties. While defunct in the digital age, the Walkman remains one of the most iconic gadgets of ...

[Daniel Rojas] cleverly solved this problem by directly adding Bluetooth functionality to a Sony MZ-R500 MiniDisc Walkman. MiniDisc Walkmen are famously compact devices, so adding a full circuit ...