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MDR-NC33
4-144-623-21 (1)
© 2009 Sony Corporation Printed in Malaysia
Noise Canceling
Headphones
Operating Instructions
Manual de instrucciones
English
(1)
WARNING
To reduce the risk of fi re 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 qualifi ed
personnel only.
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 undesired
operation.
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).
Features
• Noise canceling headphones reduce unwanted ambient
noise, providing a quieter environment to enhance
your listening experience. A microphone inside each
earpiece works with an electronic circuit to create an
opposite sound wave to cancel out the noise
• Noise canceling headphones reduce approx. 90% of
ambient noise by the electronic circuit (under the Sony
measurement standard)
• Closed type vertical in-the-ear headphones for
excellent wearing comfort and secure fi tting
• Hybrid silicone earbuds for secure fi tting and long-
term wearing comfort
• Built-in monitor function lets you minimize the audio
to listen to outside
• Long battery life-approx. 100 hours with AAA
alkaline battery
• Dual-use capability allows option to listen to music
with or without noise cancellation
• Supplied plug adaptor for easy connectivity to stereo
or dual jack for in-fl ight music services
Installing a battery
1
Push and slide the battery lid on the rear of
the battery box fully, and open.
Before opening the battery lid, check that the
claws of the lid are seen.
Claws
m
2 Insert one R03 (size AAA) battery in the
battery compartment. Observe the correct
polarity when installing battery.
Insert the E end
fi rst.
3 Align the battery lid with the battery box
correctly, then slide to close the battery lid.
Battery life
Battery
Approx. hours*
1
Sony alkaline battery
LR03 SIZE AAA
100 hours*
2
Sony manganese battery
R03 SIZE AAA
50 hours*
2
*
1
1 kHz, 0.1 mW + 0.1 mW output
*
2
Time stated above may vary, depending on the temperature
or conditions of use.
Note
The supplied battery was included in the package during
manufacturing (as a convenience to the user), it is possible
that the battery life may be 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 fl ashes or lights off.
Note
The noise canceling feature may not work correctly if battery
power is low.
Installing the
earbuds
If the earbuds do not fi t your ears correctly, the noise
canceling effect will not be optimal. To optimize noise
canceling and to enjoy better sound quality, change the
earbuds to another size, or adjust the earbuds position to
fi t your ears comfortably and snugly.
The M size earbuds are attached to the headphones
before shipment. If you feel the M size earbuds do
not suit your ears, replace them with the supplied S
or L size earbuds. Confi rm the size of the earbuds by
checking color inside. When you change the earbuds,
turn to install them fi rmly on the headphones to prevent
the earbud from detaching and remaining in your ear.
Earbud sizes (inside color)
LSM
Colored parts
(Orange) (Green) (Light blue)
Small
Large
To detach an earbud
While holding the headphone, twist and pull the earbud
off.
zTip
If the earbud slips and cannot be detached, wrap it in a dry soft
cloth.
To attach an earbud
Twist and push the inside parts of the earbud into the
headphone until the projecting part of the headphone is
fully covered.
Listening to the
music
1 Connect the headphones to the AV equipment.
Plug adaptor (supplied)
When connecting to dual or
stereo mini jacks of in-fl ight
music services.
To headphone jacks
on airplane seats
When directly connecting to the
headphone jack (stereo mini
jack) of a WALKMAN
®*, etc.
When connecting to a remote
commander with a stereo mini
jack of a WALKMAN
®*, etc.
Remote commander
* “WALKMAN” and “WALKMAN” logo are registered
trademarks of Sony Corporation.
2 Wear the headphones marked R in your right
ear and the one marked L in your left ear.
Push the earbud into your ear carefully so that
the earbud fi ts the hole of your ear snugly.
Note
Be sure the earbuds fi t your ears correctly, otherwise noise
canceling will not function properly.
Adjust the earbuds position to sit on your ear comfortably
so that they fi t your ears snugly. You may hear a rubbing
sound when you wear the headphones. This is not a
malfunction.
3 Turn on the power of the headphones.
The POWER indicator lights in red. When
power is turned on, ambient noise is reduced,
and you can listen to music more clearly at a
lower volume.
Power indicator
Power switch
4 Turn on the power of the AV equipment.
To hear ambient sound for safety
Hold down the MONITOR button when the power is
turned on.
The audio is minimized and you can hear the
surrounding environment.
Release the MONITOR button to enjoy the noise
canceling function again.
MONITOR button
Notes on using on the airplane
• The supplied plug adaptor can be connected to the
dual or stereo mini jacks of in-fl ight music services.
dual jacks stereo mini jacks
• 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 the music
Turn off the power of the headphones.
Notes
• The noise canceling function is only effective for noise in
the low frequency band. Although noise is reduced, it is not
canceled completely.
• Do not cover the microphone of the headphones with your
hands. The noise canceling function may not work properly.
Microphone
• The noise canceling function may not work properly unless
the headphones are put on fi rmly.
• You can use the headphones even without turning on the
power. In this case, the noise canceling function is not active,
and the headphones operate as passive headphones.
• After you turn on the power of the headphones, you may hear
a slight hiss. This is the operating sound of the noise canceling
function, not a malfunction.
• In a quiet place, or depending on certain noises, you may
feel that the noise canceling function is not effective, or that
noise is accentuated. In this case, turn off the power of the
headphones.
• Interference noise can occur from nearby cellular phones.
Should this occur, locate the headphones further away from
the cellular phone(s).
Using the clip
You can fasten the battery box by its clip on a shirt
pocket.
Clip
Using the supplied
cord adjuster
You can adjust the cord length by winding the cord on
the cord adjuster. (The cord can be wound to the cord
adjuster up to 40 cm. If you wind more, the cord comes
off from the cord adjuster easily.)
1
2
Cord
adjuster
1 Wind the cord.
2 Push cord into slot hole to secure in place.
When carrying the headphones
The headphones and the battery box can also be separately
stored in the partitioned carrying pouch (supplied).
Precautions
• Clean the headphones with a soft dry cloth.
• Do not leave the jack plug dirty otherwise the sound
may be distorted.
• Be sure to bring the headphones to the Sony dealer
when requiring a change of earbuds or repair work.
• Do not leave the headphones in a location subject to
direct sunlight, heat or moisture.
• Do not subject the headphones to excessive shock.
• Handle the driver units carefully.
• To clean the earbuds, fi rst remove them from the
headphones, and then clean them with water and mild
detergent. After cleaning, dry each earbud carefully
before use.
• The earbuds will need to be replaced from time to
time. If they are worn out by daily use or longtime
storage, replace them with new ones.
• If you fell drowsy or sick while using these
headphones, stop use immediately.
• Install the earbuds fi rmly onto the headphones. If an
earbud accidentally detaches and is left in your ear, it
may cause injury.
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.
Do not use headphones while driving
and cycling, etc.
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.
Note on static electricity
In particularly dry air conditions, mild tingling may
be felt on your ears. This is a result of static electricity
accumulated in the body, and not a malfunction of the
headphones.
The effect can be minimized by wearing clothes made
from natural materials.
Troubleshooting
No sound
• 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.
Power does not turn on
• Check if the battery has expired (the POWER
indicator lights off). Replace the battery with a new
one.
Specifi cations
General
Type Dynamic, closed
Driver units 13.5 mm, dome type (CCAW adopted)
Power handling capacity
50 mW
Impedance 16 Ω at 1 kHz
(when the power is on)
16 Ω at 1 kHz
(when the power is off)
Sensitivity 98 dB/mW (when the power is on)
99 dB/mW (when the power is off)
Frequency response
10 – 22,000 Hz
Total Noise Suppression Ratio*
1
Approx. 10 dB*
2
Cord Approx. 1.5 m (59
1
/8 in) OFC Litz cord,
neck-chain (including battery box)
Plug Gold-plated L type stereo mini plug
Power source DC 1.5 V, 1 × R03 (size AAA) battery
Mass Approx. 7 g (0.3 oz) headphones (not
including cord)
Approx.19 g (0.7 oz) battery box
(including battery, not including cord)
Supplied accessories
Sony R03 (size AAA) battery (1)
Earbuds (S × 2, M × 2, L × 2)
Carrying pouch (1)
Plug adaptor for in-fl ight use*
3
(single/dual) (1)
Cord adjuster (1)
Operating Instructions (1)
Warranty card (1)
*
1
Under the Sony measurement standard.
*
2
Equivalent to approx. 90% reduction of energy of sound
compared with not wearing headphones.
*
3
May not be compatible with some in-fl ight music services.
Design and specifi cations are subject to change without notice.