
25
In
the
default
interface,
it
is
shooting
mode
Click
the
icon
to
enter
the
picture
mode
Whether
in
the
default
interface
or
picture
mode,
you
can
record
and
switch
the
screen
View
software
version
attribute
Reminder:
When
use
the
high
‐
speed
scanner,
please
open
and
close
it
slightly,
occasionally
the
booth
door
cannot
be
opened,
you
can
hold
the
booth
door
slightly,
then
press
the
unlock
key.
We
are
not
to
if
there
is
update
for
the
lecture
instrument
software.
VII.
Wireless
Voice
System
There
is
a
2.4G
wireless
receiving
module
installed
inside
the
control
system,
it
can
be
matched
to
use
2.4G
wireless
teaching
microphone
JF
‐
303A
for
voice
communication.
The
using
method
is
as
follows:
3
meters
in
the
near
of
the
control
system,
shift
the
left
power
key
of
the
multi
‐
functional
microphone
to
ON,
the
red
and
blue
lights
below
the
charging
connection
blinks,
that
indicate
it
is
coding
automatically,
after
finish
the
coding,
the
red
light
flashed
out
and
the
blue
light
on,
the
wireless
voice
communication
can
be
used
now.
The
characteristics
of
JF
‐
303A:
Equipped
with
four
functions,
i.e.
the
wireless
microphone,
PPT
turn
page,
the
laser
pointer
and
remote
controller
the
computer
music
player;
built
‐
in
microphone
and
set
the
external
microphone
interface,
can
be
matched
with
a
head
mounted
MIC;
The
built
‐
in
lithium
battery
and
charging
module,
are
equipped
with
a
low
voltage
alarm,
charging
indicator,
automatic
shutdown
after
charging
functions.
A
full
charged
battery
can
be
used
for
more
than
12
hours
a
day,
it
can
meet
the
requirements
of
the
full
day
use;
Encryption
technology
is
used
for
professional
ID
code,
ID
code
up
to
millions
of
groups,
each
set
of
the
product
has
an
unique
ID
code.
Using
the
same
device
at
the
same
location
do
not
interfere
with
each
other;
If
the
transmitter
and
receiver
do
not
on
the
frequency,
or
too
far
from
receiving
fault
frequency,
the
transmitter
will
shut
down
automatically
within
2
minutes.
VIII.Pre
‐
installed
software
1.Cloud
whiteboard
three
in
one
software
2.The
high
‐
speed
scanner
software
Power
switch
Power/charger indicator
Laser
button
Charger
port
MIC/PC
VOL
‐
Pair
indicator
MIC
mute
External
audio
mute
Mode
switch
PPT page up/previous
MIC/PC
VOL+
PPT
page
down/next
PPT
play/back/off/
music
play/pause