: Under USB/Micro SD Card mode -
s
hort press to get next song, long
press to fast forward.
Under BT mode- next song.
C: DC 5V input (charging slot)
D: USB Playing back/Micro SD Card input
E: MIC VOL
(control
increase or decrease the microphone volume.
)
F: ECHO
G: BASS
H: TREBLE
I: VOLUME
(
control
increase or decrease the volume)
J: LED Light (
Charging indicator)
K:
Aux-in (3.5mm)
L: Microphone Input
M: LED switching
