How Sony's Walkman Created Headphone Culture - WSJ

When You Listen to Music, You're Never Alone - Nautilus

Sony's MD Walkman Goes the Way of the Cassette - WSJ

1MORE MK802 Bluetooth Over-Ear Headphones with Microphone and Remote (Red)

The History of Headphones - WSJ

PlayStation 5: The Next Step in Sony's Rebound - The New York Times

How Sony Makes Money Off Apple's iPhone - WSJ

History of Sony - Wikipedia

Remember the Walkman? This Nostalgic Update Improves on a Classic - WSJ

Millennials rewind to the 1980s as cassette sales soar

Sony's Walkman Makes Comeback - WSJ