• If you haven’t used the headphones for a long period
of time, the life of the rechargeable battery may
become short. This will improve when you repeat the
charging and discharging process several times.
• When the battery life reduces to half, this may be the
end of battery lifetime. For how to change batteries,
consult your place of purchase or a Sony dealer.
• Do not store the headphones in hot places for a long
period of time. When storing it for more than a year,
charge the battery once a year to prevent over
discharge.
• You cannot charge the rechargeable battery using the
supplied connecting cord with battery case.
General charging and usage time
Charging time
Usage time*
1
Approx. 3 hours
*
2
Approx. 15 hours
*
3
*
1
At 1 kHz, 0.1 mW + 0.1 mW output
*
2
Hours required to fully charge an empty battery
*
3
Time stated above may vary, depending on ambient
temperature or conditions of use.
When the rechargeable
battery is low
When the rechargeable battery is low, short beeps
sound from the unit for 8 seconds and the
POWER indicator blinks slowly.
When the battery level is getting lower, a long
beep sounds from the unit for 2 seconds and the
POWER indicator blinks quickly, and all
operations are stopped. Move the POWER switch
to “OFF” in this case.
z
Tips
When the battery runs out, you can supply the power to
the headphones in one of the following ways:
• Connect the headphones to the AC power adaptor by
following the steps shown in “Charge the
headphones.”
You can use the headphones while charging.
• Use the supplied connecting cord with battery case.
See “How to use the connecting cord with battery
case” for details.
Using your AC power
adaptor abroad
You can use your AC power adaptor in any
country or area that uses 100 V to 240 V AC,
50/60 Hz, by connecting a plug adaptor. If the
country you visit employs a different shaped
socket, use the correct plug adaptor.
Consult your nearest travel bureau for the type of
plug adaptor needed for your trip.
Listening to music
1
Connect the headphones to the AV
equipment.
* “WALKMAN” and “WALKMAN” logo are
registered trademarks of Sony Corporation.
Notes
• When connecting the cord, insert the plug into the
jack until the green portion of the plug disappears.
• To disconnect the cord, pull it out by the plug, not
the cord, as the inner conductors may break.
2
Turn on the power on the right side of the
headphones.
The POWER indicator lights up in blue, and a
short beep sounds from the unit.
R
L
POWER
indicator
POWER
switch
Connecting cord
0.5 m (supplied)
When connecting
to the stereo mini
jack of the remote
control supplied
with a WALKMAN
,
etc.
Remote
control
When connecting
to the stereo mini
jack of a
WALKMAN
*
, etc.
Headphones
Connecting
cord 1.5 m
(supplied)
3
Put on the headphones.
After confirming the cord on the left and the
POWER switch on the right, put on the
headphones.
Adjust the ear pads so as to cover your ears.
4
Start playing on the AV equipment
connected to the headphones.
Note
Playback is not available when there is no
power.
Utilizing the AI Noise
Canceling
1
Press the AI NC MODE button.
When you press the AI NC MODE button and
the POWER switch is set to “ON”, sounds
come from the headphones to inform you that
the unit has started analyzing ambient sound
components (approx. 3 seconds).
During analysis, sound reproduction from the
unit is stopped and the POWER indicator
lights in pink.
When analysis is completed, the most
effective noise canceling mode is set
automatically, and sound reproduction from
the headphones starts.
AI Noise Canceling
AI Noise Canceling is a useful function that
automatically selects one of the noise canceling
modes. This function provides the most effective
noise canceling mode by immediately analyzing
ambient sound components when the AI NC
MODE button is pressed.
z
Tips
• When the power of the headphones is turned on,
mode A is set. (See “Noise canceling mode types,”
for details about Mode A.)
• Press the AI NC MODE button again to reset the
noise canceling mode if ambient noise has changed,
such as when you move outdoors from a room.
To set the noise canceling mode
manually
You can set the noise canceling mode manually
(manual noise canceling).
1
Press and hold the AI NC MODE button
for more than one second.
Sounds (
) come from the headphones to
inform you that manual noise canceling is set.
2
Press the AI NC MODE button
repeatedly to change the mode type.
The POWER indicator blinks pink and a
beep(s) sound(s) from the headphones. After
that, the noise canceling mode is set. The
number of POWER indicator blinks and the
beep sounds depends on the mode selected.
See “Noise canceling mode types.”
z
Tips
• Mode A is selected when manual noise canceling is
activated.
• To change from manual noise canceling to AI Noise
Canceling, press and hold the AI NC MODE button
for more than one second. When you hear the sounds
(
) to inform you of the change to AI Noise
Canceling, press the AI NC MODE button again.
Ambient analysis starts and the most effective noise
canceling mode is set automatically.
Noise canceling mode types
Mode names
Number of POWER indicator
blinks (pink) and beep
sounds
A
1
B
2
C
3
A:Noise mainly in an airplane is effectively reduced.
B: Noise mainly in a bus or a train is effectively
reduced.
C: Noise mainly found in an office environment (PC,
copier, air ventilation, etc.) is effectively reduced.
R
L
POWER
indicator
AI NC MODE
button
Tactile dot
(on the left)
5
Set the POWER switch of the
headphones to “OFF,” and then set the
POWER switch of the battery case to
“ON.”
The POWER indicator on the battery case
lights up green.
See steps 2 to 4 of “Listening to music” for
the following setting steps.
After use, set the POWER switch of both the
headphones and the battery case to “OFF.”
z
Tips
• The power supply of the rechargeable battery is
consumed first, unless the battery runs out.
• If you connect and turn on the connecting cord with
battery case in advance when the rechargeable battery
is low, you can use the headphones uninterrupted,
even after the battery in the headphones runs out.
Notes
• The use of manganese batteries is not recommended,
since this type of battery has an extremely short
usage time.
• The battery case supplies the power to the
headphones for operation purposes only. It does not
charge the internal rechargeable battery in the
headphones.
• The POWER indicator of the battery case becomes
dim when the battery life is reaching the limit.
Replace the battery with new ones at the time.
• The supplied connecting cord with battery case is
only for these headphones. Do not connect to other
equipment.
Battery life
Battery type
Approx. hours*
1
Sony Alkaline
10 hours
*
2
LR6 (size AA) battery
*
1
Output at 1 kHz, 0.1 mW + 0.1 mW
*
2
Time stated above may vary, depending on ambient
temperature or conditions of use.
After use
Turn off the power of the headphones.
Flat Storage
The housings rotate to make them flat for easy
storage in the carrying case (supplied), or in a seat
pocket. Restore to their usual position before using.
R
L
R
L
Putting the headphones
in the carrying case
Rotate the housings to be flat before putting them
in the carrying case.
POWER switch
POWER indicator
Hearing environmental
sound for safety
If the MONITOR button is pressed and held while
the POWER switch is set to ON, playback silences
then you can hear the surrounding environment.
Note
Environmental sound might not be heard if the
microphone is covered with your fingers.
When using in an
airplane
• The supplied plug adaptor can be connected to
the dual or stereo mini jacks in an airplane.
• Do not use the headphones when use of
electronic equipment is prohibited, or when use
of personal headphones for in-flight music
services are prohibited.
How to use the
connecting cord with
battery case
You can continue to use the unit, even when the
rechargeable battery in the headphones runs out,
by connecting the supplied connecting cord with
battery case.
Use the connecting cord with battery case by
inserting two size AA alkaline batteries.
1
Open the lid of the battery case.
2
Insert two size AA alkaline batteries.
Make sure of direction, matching the
e
marks in the case with those on the batteries.
3
Close the lid.
4
Connect the supplied connecting cord
with battery case to both the headphones
and AV equipment.
Notes
• When connecting the cord, insert the plug fully into the
jack so that the green sign on the metal parts cannot be
seen.
• When disconnecting the cord, pull it out by holding the
plug. If the cord is pulled forcibly the wire may break.
AV equipment
Headphones
Connecting cord with
battery case (supplied)
for dual jacks
for stereo mini jacks
R
L
Monitor microphone
MONITOR
button
Disposing of the unit
The unit contains a rechargeable Lithium-Ion
battery. For environmental conservation, be sure
to remove the built-in rechargeable batteries from
the unit before disposing, and dispose of the
batteries appropriately.
1
Pull off the earpad on the left housing,
and unwind the two screws located as in
the illustration.
1
2
L
2
Turn down the left housing and pull off
the outer cover.
3
Keep the cord away from the rechargeable
battery.
First, remove the adhesive tape on the surface
of the battery. Then, loosen the cord just
beside the rechargeable battery.
Note
Be careful not to break the internal wires.
4
Pull out the connector on the board.
Note
Be careful not to break the internal wires
when disconnecting the connector.
5
Remove the rechargeable battery.
The rechargeable battery is firmly installed by
adhesive tape. Take out the rechargeable
battery by lifting up in the direction of the
arrow shown in the illustration.
Note
Remove the rechargeable battery, taking care
not to damage it.
Precautions
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
headphones.
• The noise canceling effect may not be
pronounced in a very quiet environment, or
some noise may be heard.
• The noise canceling effect may vary depending
on how you wear the headphones.
Rechargeable
battery
Adhesive tape
Connector
Earpad
Cover
• The noise canceling function works for noise in
the low frequency band primarily. 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.
• Howling may occur if you do not wear the
headphones correctly.
• Howling may occur if you place an object such
as finger close to inside of the headphones.
Keep it away from the headphones.
• 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.
Note 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.
Do not listen with the headphones while
driving or cycling
As your headphones reduce surrounding sound, it
may cause a traffic accident. Also avoid using
them where hearing must not be impaired, for
example, at a railroad crossing, a construction
site, etc.
If you have any questions or problems
concerning the system that are not covered in
this manual, please consult your nearest Sony
dealer.
Troubleshooting
No sound
• Turn on the headphones.
• When connecting the connecting cord with
battery case, turn on the power of the battery
case.
• Check that the rechargeable battery is not
depleted.
• When connecting the connecting cord with
battery case, check that the batteries have not
expired.
• Check the connection of the headphones and
the AV equipment.
• Check that the connected AV equipment is
turned on.
• Turn up the volume of the connected AV
equipment.
Muffled sound
• Turn down the volume of the connected AV
equipment.
• Charge the headphones.
• Replace the alkaline batteries in the battery
case with new ones.
Power does not turn on
• Check if the battery has expired (the POWER
indicator dims).
b
If the power does not turn on, even after
charging the headphones, the rechargeable
battery may be damaged. Consult your place
of purchase or a Sony dealer in this case.
• When you are using the headphones with the
connecting cord with battery case, set the
POWER switch on the battery case to “OFF,”
then to “ON” again.
• Replace the alkaline batteries in the battery
case with new ones.
No operation works
• Set the POWER switch of the headphones to
“OFF,” confirm the connections, and then set
the POWER switch back to “ON.”
• Reset the headphones.
b
Insert a pointed object, such as the tip of a
clip, into the hole located under the RESET
button on the right housing, and press until
the button slightly rebounds.
Specifications
General
Type
Closed dynamic
Driver unit
40 mm, dome type (CCAW adopted)
Power handling capacity
100 mW
Impedance
40
Ω
at 1 kHz
Sensitivity
102 dB/mW
Frequency response
5 - 24,000 Hz
Power source
DC 3.7 V: Built-in lithium-ion
rechargeable battery,
2
×
LR6 (size AA) batteries, or AC
power adaptor
Power consumption
5.5 W
Mass
Approx. 195 g (6.9 oz)
Supplied accessories
Connecting cord (0.5 m, gold plated stereo mini
plug) (1)
Connecting cord (1.5 m, gold plated L type stereo
mini plug) (1)
Connecting cord with battery case (1)
Carrying case (1)
Plug adaptor for in-flight use
*
(single/dual) (1)
Gold-plated unimatch plug adaptor (stereo phone
plug
y
stereo mini jack) (1)
AC power adaptor AC-MS608T (1)
Operating Instructions (1)
Startup guide (1)
Product Information (1)
*
May not be compatible with some in-flight
music services.
Design and specifications are subject to change
without notice.
English
Noise Canceling Headphones
Before operating the unit, please read this manual
thoroughly and retain it for future reference.
WARNING
To reduce the risk of fire or
electric shock, do not expose this
apparatus to rain or moisture.
To reduce the risk of electrical
shock, do not open the cabinet.
Refer servicing to qualified
personnel only.
Connect the AC power adaptor to an easily
accessible AC outlet. Should you notice an
abnormality in the AC power adaptor, disconnect
it from the AC outlet immediately.
Do not install the AC power adaptor in a confined
space, such as a bookcase or built-in cabinet.
To reduce the risk of fire or electric shock, do not
place objects filled with liquids, such as vases, on
the AC power adaptor.
Do not expose the batteries (battery pack or
batteries installed) to excessive heat such as
sunshine, fire or the like for a long time.
Features
•
Digital noise canceling headphones with
the proprietary DNC software engine.
The high-precision canceling signal delivers
predominant noise canceling performance.
•
AI (Artificial Intelligence) Noise
Canceling function.
Automatic selection of the optimal noise
canceling mode based on intelligent analysis of
environmental ambient noise.
•
Digital equalizer delivers ideal
frequency response and high-quality
music reproduction.
•
High S/N ratio achieved through digital
signal processing.
•
Lightweight design for extremely
comfortable wearing.
Generous use of lightweight materials such as
Magnesium and A7075 aluminum alloy.
•
Pressure relieving urethane cushion in
the earpad.
The earpad structure provides comfort without
stress even after extended use.
•
Built-in monitor function lets you
silence the audio to hear externally.
Charge the headphones
The headphones contains a rechargeable Lithium-
Ion battery. Charge the battery before use.
Connect the supplied AC power adaptor to the DC
IN 6V jack on the headphones and an AC outlet.
The charge indicator lights up in orange and
charging starts.
Charging is completed after about three hours,
and the charge indicator goes out.
Disconnect the AC power adaptor after the
charging has finished.
Notes
• Use the AC power adaptor supplied with this unit. Do
not use any other AC power adaptor since it may
cause the unit to malfunction.
Polarity of the plug
• Avoid exposure to temperature extremes, direct
sunlight, moisture, sand, dust or mechanical shock.
Never leave in a car parked in the sun.
• Charge in an environmental temperature of between
0°C and 40°C (between 32°F and 104°F). Otherwise,
the battery may not be fully charged.
To DC IN
6V jack
To an AC outlet
AC power
adaptor
(supplied)
Headphones
Charge
indicator
