also: ヘッドフォンステレオ
portable cassette player; Walkman
Wasei-eigo term from the 1980s–1990s for a portable cassette player with headphones; now largely historical, replaced by more modern devices.
wasei-eigo (Japanese-coined English), from headphone stereo
Back then, I commuted to school listening to music on a portable cassette player.
This Walkman doesn't work anymore, but it's a keepsake.