Polk Mono UMC1 Installation And Operation Manual page 15

UMC1
folder sequentially. Press the Intro button again to stop Intro Scan and resume
normal playback of the current file.
Repeat Play
Press the Repeat button (5) during song play to repeat the current file. Press the
Repeat button again to stop repeat play.
Random Play
Press the Random button (4) to play all files in the current folder in random,
shuffled order. Press the Random button again to stop random play.
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