IV. FUNCTIONAL OPERATIONS AND FEATURES
1. LED Screen
2. Master Volume: In MP3/AUX mode, use it to regulate volume output from the
speaker.
3. TF Port: Read audio files in MP3 format in TF card in capacity up to 32G
(FAT32).
4. USB Port: Read audio files in MP3 format in USB storage device in capacity
up to 32G (FAT32).
5.
: Select the previous song.
6.
:In USB/TF card reading status, short press it to play/pause, or long press
it to select one of four playback sequencing modes (All - play all tracks in
sequence; ONE - repeat one track). In AUX input, short press it to toggle
between mute and normal volume.
7.
: In USB/TF card reading status, short press it to go to the previous track.
8. Mode/SHIFT: short press it to toggle between USB/TF. long press it to toggle
between recording folder and MP3 folder.
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