MP3 player
US /ˌem.piː.ˈθriː ˌpleɪ.ər/
UK /ˌem.piː.ˈθriː ˌpleɪ.ər/

1.
lettore MP3
a portable electronic device that plays digital audio files, especially those in the MP3 format
:
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She loaded her favorite songs onto her new MP3 player.
Ha caricato le sue canzoni preferite sul suo nuovo lettore MP3.
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Before smartphones, MP3 players were very popular for listening to music on the go.
Prima degli smartphone, i lettori MP3 erano molto popolari per ascoltare musica in movimento.