Copyright ©2012 Enforcement Technology Group, Inc. (ETGI). All rights reserved. Information Subject to Change Without Notice.
COMPONENT
LIST:
INTROUDUCTION/OVERVIEW:
•(4)
Dual
‐
cup
Battery
Powered,
Wireless
Infrared
(IR)
Monitoring
Headphones
**
•(2)
IR
Headphone
Transmitter
Bases
Hardwired
to
3.5mm
(1/8”)
“Audio
Source
Connection” Cable
•(2)
IR
Headphone
Transmitter
Base
Power
Adapters
•(2)
3.5mm
(male)
to
RCA
(female)
“Y” Adapters
•(2)
3.5mm
(female)
to
3.5mm
(female)
Couplers
•(2)
12
ft.
RCA
Composite
Audio
Extension
Cables
•(2)
3.5mm
(female)
to
6.33mm
(1/4”)
(male)
Adapters
**Requires
(2)
AAA
Alkaline
Batteries
(not
included).
The
IR
Headphone
Transmitter
Base
is
connected
to
an
External
Audio
Source.
The
Transmitter
Base
turns
the
sounds
produced
by
the
External
Audio
Source
into
a
series
of
pulses.
The
pulses
work
like
bits
in
a
computer,
digitally
capturing
the
sound
information.
These
pulses
are
then
sent
to
the
Transmitter
Base’s
infrared
(IR)
light
emitting
diode
(LED).
The
LED
is
a
device
which
produces
light
at
a
particular
wavelength.
The
infrared
LED
produces
long
wavelength
infrared
light.
It
can
not
be
seen
with
the
naked
eye,
but
works much
like
visible
light.
It
can
reflect
off
of
mirrors,
for
example,
and
can
be
blocked
by
any
objects
in
the
way.
Because
of
this,
infrared
headphones
can
only
be
used
when
they
are
within
a
line
of
sight
of
the
transmitter.
The
IR
Monitoring
Headphones
are
equipped
with
IR
sensors
(located
on
the
ear
‐
cups)
that
pick
up
the
light
with
and
turn
it
back
into
sound.
The
IR
Monitoring
Headphones
have
an
infrared
cell,
which
produces
a
pulse
of
electricity
every
time
infrared
light
lands
on
it.
The
cell
is
designed
to
pick
up
the
particular
frequency
of
light
produced
by
the
Transmitter
Base,
so
it
is
not
disturbed
or
thrown
off
by
other
light.
A
small
computer
inside
of
the
headphones
takes
these
pulses
of
electricity
and
turns
them
into
an
audio
signal.
This
audio
signal
is
then
amplified
which
become
audible
sound.
IR
MONITORING
HEADPHONE
BATTERY
INSTALLATION:
1.
Remove
the
battery
compartment
cover
located
on
the
right
ear
‐
cup
of
the
IR
Monitoring
Headphone.
NOTE:
A
flathead
screwdriver
may
be
used
to
help
detach
the
battery
compartment
cover
from
the
headphone
ear
‐
cup.
2.
Install
(2)
fresh/new
AAA
alkaline
batteries
into
the
battery
compartment
according
to
proper
polarity
(+/
‐
).
NOTE:
When
fresh/new
AAA
alkaline
batteries
are
installed,
the
device can
be
powered
on/used
for
approximately
25
hours.
3.
Replace
the
battery
compartment
cover.