SOYO SY-KT400 Dragon Ultra User Manual page 170

Playback time field displays the current playback time.
File name and status field displays the file name, audio format,
sound effects selection, playback mode, Karaoke mode, and
SPDIF status.
Button Function
Playlist: Playlist allows you to insert, remove, and record the audio
files into and from the playlist. The audio files include wave, MP3,
and MPEG-1 encoding files.
Previous song: Loads the previous audio file of playlist. If current
file is the first file, the last one will become the current selection.
Next song: Loads the next audio file of playlist. If current file is the
last one, the first file will become the current selection.
Playback: Starts to playback the current audio file.
Pause/Restart: Pauses or restarts the current playback action.
Stop: Stops playback.
Playback backward for 10 seconds: Playback the current to 10
seconds before.
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