SMSL PL100 User Manual page 17

Pause Playback
During CD playback, if user want to interrupt the playback and enter the pause state
for a short period of time, user can press [ ] on the panel or the remote control,
at this time, the display shows [ ] on the upper left side of the screen, and if user
press the button again, it will return to normal playback state.
Previous Track
In the CD playback state, press the previous track button [ ] on the panel or
remote control, if the playing time of the current track is less than 3 seconds, it will
skip to the previous track. If the playing time of the current track is more than 5
seconds, it will go back to the beginning of the current track, and then press it again
to skip to the previous track, which will interrupt the original purpose of the track
and enter into the playback of the previous track.
Next Track
In the CD playback state, if you want to skip the current track, just press the next
track button [ ] on the panel or remote control to skip to the next track,
which interrupts the playback of the original track and enters into the playback
of the next track.
Jump to a specific track
In the CD playback state, if you want to skip to the specified track, user can press the
number combination on the remote control to jump to the specified track; if you want
to jump to the 12th track, you need to press "1" and "2" on the remote control.