ioulex In 1979, when Sony introduced the Walkman—a 14-ounce cassette player, blue and silver with buttons that made a satisfying chunk when pushed—even the engineers inside Sony weren’t ...

Experts from Protect Your Bubble have revealed the retro gadgets that are now worth a fortune, including phones, cassette players, and gaming consoles. Topping the list is the Sony Walkman TPS-L2 ...