+An **MP3 player** is a portable electronic device that plays digital audio files, notably the [MP3](/wiki/mp3) format. These compact units revolutionized personal music, offering a pocket-sized library free from physical media like the [Compact Disc](/wiki/compact_disc). It transformed how people carried and experienced their personal soundtracks.
+## See also
+- [Digital Audio](/wiki/digital_audio)
+- [Portable Music](/wiki/portable_music)
+- [Streaming Music](/wiki/streaming_music)
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