Longman Dictionary of Contemporary English
personal stereo
noun
EXAMPLES FROM CORPUS
▪ Do not wear a personal stereo headset so that you are unaware if some one comes up behind you.
▪ If you have ever switched on a personal stereo full blast, you will have some idea what it feels like.
▪ She was the woman who discovered the personal stereo in the early nineties.
▪ That was more like a cumbersome personal stereo.
Wiktionary
personal stereo
n. A portable audio cassette player.
Wikipedia
Personal Stereo
Personal Stereo is the fifth album by Norwegian electronic band Flunk released in 2007 on Beatservice Records.