This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
You are cautioned that any changes or modiﬁ cations
not expressly approved in this manual could void
your authority to operate this equipment.
The validity of the CE marking is restricted to only
those countries where it is legally enforced, mainly
in the countries EEA (European Economic Area).
• Noise canceling headphones reduce unwanted
ambient noise, providing a quieter environment to
enhance your listening experience. A microphone
inside each earpad works with an electronic circuit
to create an opposite sound wave to cancel out the
• Foldable and swivel design for easy portability.
• Dual use capability allows option to listen to music
with or without noise cancellation.
• Neodymium magnet delivers powerful sound.
• Supplied plug adaptor for easy connectivity to
stereo or dual jack for in-ﬂ ight music services.
Rotate the left housing as illustrated.
Push the OPEN button to open the battery
3Insert one R03 (size AAA) battery by
on the battery to the
in the battery case.
4Close the lid.
When connecting to dual or
stereo mini jacks of in-ﬂ ight
To headphone jacks
on airplane seats
When connecting to the
headphone jack (stereo
mini jack) of a
When connecting to a
remote commander with
a stereo mini jack of a
2Turn on the power of the headphones.
The POWER indicator lights in red.
When the power is turned on, ambient
noise is reduced, and you can listen to
music more clearly at a lower volume.
The noise canceling microphone is built inside each
earpad. Do not put weight or force on the microphone
as it may damage the microphone.
3Wear the headphone marked R on your
right ear and the one marked L on your
4Turn on the power of the AV equipment.
When using in an airplane
• The supplied plug adapter can be connected to
the dual or stereo mini jacks in an airplane.
for dual jacks for stereo mini jack
• Do not use the headphones when use of
electronic equipment is prohibited or when
use of personal headphones for in-ﬂ ight music
services is prohibited.
If you have any questions or problems concerning
the system that are not covered in this manual,
please consult the nearest Sony dealer.
After listening to music
Turn off the power of the headphones.
Rotate the housings to make them ﬂ at for
easy storage in the seat pocket.
Restore to their usual position before
Fold the headphones as illustrated for easy
storage in the carrying pouch (supplied).
The headphones contain a noise canceling circuit.
What is noise canceling?
The noise canceling circuit actually senses
outside noise with built-in microphones and sends
an equal-but-opposite canceling signal to the
• The noise canceling effect may not be
pronounced in a very quiet environment, or some
noise may be heard. In such a case, turn the
POWER switch off.
• The noise canceling effect may vary depending
on how you wear the headphones.
• When you turn the POWER switch on, the
operation sound of the noise canceling may be
noticeable. This is not a malfunction.
• The noise canceling function is only effective for
noise in the low frequency band. Although noise
is reduced, it is not canceled completely.
• When you use the headphones in a train or a car,
noise may occur depending on street conditions.
In such a case, turn the POWER switch off.
• You can use the headphones without turning
on the power. In this case, the noise canceling
function is not active, and the headphones
operate as passive headphones.
• Howling may occur if you do not wear the
• Howling may occur if you place an object
such as ﬁ nger close to the noise canceling
microphone. Keep it away from the microphone.
• Mobile phones may cause interference and
noise. To avoid interference, use noise canceling
feature only with wireless transmitters turned
off (Airplane Mode). Interference noise can also
occur from nearby mobile phones. Should this
occur, locate the headphones further away from
the mobile phone.
Notes on usage
• Clean the headphones with a soft dry cloth.
• Do not leave the plug dirty otherwise the sound
may be distorted.
• Be sure to consult a Sony dealer when the
earpads become dirty or damaged, or when the
headphones require repair work.
• Do not leave the stereo headphones in a location
subject to direct sunlight, heat or moisture.
Notes on headphones
Preventing hearing damage
Avoid using headphones at high volume. Hearing
experts advise against continuous, loud and
extended play. If you experience a ringing in your
ears, reduce the volume or discontinue use.
Sony alkaline battery 50 hours*
LR03 SIZE AAA
Sony manganese battery 25 hours*
R03 SIZE AAA
1 kHz, 0.1 mW + 0.1 mW output
Time stated above may vary, depending on the
temperature or conditions of use.
Because the supplied battery was included in
the package from the time of manufacture (as a
convenience to the user), it is possible that the battery
life may be somewhat depleted by the time of purchase.
The actual life of the supplied battery may be shorter
than the standard time described in this manual when
using a fresh battery.
When to replace the battery
Replace the battery with a new one when the
POWER indicator dims. The noise canceling feature
may not work correctly if battery power is low.
If the battery lid is detached
Attach it as illustrated.
Connect the headphones to the AV
* “WALKMAN” and “WALKMAN” logo are
registered trademarks of Sony Corporation.
Insert the E end
Do not use headphones while driving and
As headphones reduce outside sounds, they may
cause a trafﬁ c accident. Also, avoid listening with
your headphones in situations where hearing must
not be impaired, for example, a railroad crossing, a
construction site, etc.
• Check the connection of the headphones and the
• Check that the connected AV equipment is turned
• Turn up the volume of the connected AV
• Replace the battery.
Mufﬂ ed sound
• Turn down the volume of the connected AV
• Replace the battery.
Power does not turn on
• Check if the battery has expired (the POWER
indicator dims). Replace the battery with a new
• Make sure you are wearing the headphones
Type Closed, dynamic
Driver unit 30 mm, dome type (CCAW
Power handling capacity
Impedance 33 Ω at 1 kHz
(when the power is on)
35 Ω at 1 kHz
(when the power is off)
Sensitivity 102 dB/mW
(when the power is on)
(when the power is off)
30 – 20,000 Hz
Total Noise Suppression Ratio*
Approx. 9 dB*
Cord Approx. 1.5 m (59
in) OFC litz
Power source DC 1.5 V, 1 × R03 (size AAA)
Mass Approx. 134 g (4.7 oz) including
Sony R03 (size AAA) battery (1)
Carrying pouch (1)
Plug adaptor for in-ﬂ ight use*
Operating Instructions (1)
Under the Sony measurement standard.
Equivalent to approx. 87.4 % reduction of energy of
sound compared with not wearing headphones.
May not be compatible with some in-ﬂ ight music
Design and speciﬁ cations are subject to change
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