I
‐
Before
using
1)
Overview
•
1.extension
panel
can
fit
different
size
user.
•
2.>
key
:next
song
•
3.<
key
:last
song
•
4.LED
Indicator
for
different
states
•
5.Multifunction
button
(MFB):Switch
on/off
the
headset,
answer,
stop
call,
voice
dial,
redial
last
number,
pause
and
play
•
6/7.+
key:
volume
up
/
–
key:
volume
down
2)
Charging
the
headset
•
First
time
charging
:
first
time
charger
battery
,please
be
sure
the
battery
has
been
charged
fully
before
use.
•
Next
time:
When
you
hear
warning
tones
of
“DU
DU
DU”
out
and
at
the
same
time
the
red
light
blinks
two
times.
It
means
battery
is
almost
run
out
,you
need
to
charge
it.
A.
Charging
the
battery
with
Micro
USB
cable
•
Step1:
Insert
USB
charging
cable
into
USB
port
which
have
support
5V
power
(such
as
AC/DC
USB
adapter
or
PC
USB
port)
•
Step2:
Connect
charging
cable
to
the
charging
port
of
headset.
1.
2.
3.
4.
5.
7.
6.
