FM stereo in the context of Personal stereo

A personal stereo, or personal cassette player, is a portable audio player for cassette tapes. This allows the user to listen to music through headphones while walking, jogging or relaxing. Personal stereos typically have a belt clip or a shoulder strap so a user can attach the device to a belt or wear it over their shoulder. Some personal stereos came with a separate battery case. With invention of compact radios based on transistors and integrated circuits and there was also many portable radio receivers with the support of FM stereo (optionally with AM, MW, LW) on the market.