Sony Walkman Iconic & Sony Walkman MP3 Source: (TheVerge, 2014

Sony NWZS544 8 GB Walkman MP3 Video Player (Black) (Discontinued by Manufacturer)

Sony Walkman NWZE374/RC 8GB MP3 Player Red : Electronics

Sony Walkman at 35: looking back at the most iconic music player of all time

Sony 8 GB Walkman Video MP3 Player (Black) : Electronics

Sony Walkman: music to your ears, through the years - The Verge

Sony NWZS544 8 GB Walkman MP3 Video Player (Black) (Discontinued by Manufacturer)

Sony Walkman & MP3 Players

List of Sony Walkman products - Wikipedia

SONY Walkman S Series 8GB MP3/MP4 Player NWZ-S544, Violet

Sony Walkman NWZ-E383 Red Red (4 GB) Digital Media Player for sale online

The Evolution of “Walk-Around Sound”, by Barry Silverstein, ILLUMINATION-Curated

Iconic Sony Walkman designs from yesteryear: Looking back at classic devices