Sony MDR NC22 Leaflet

Turn off the power of the headphones.

• 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.

• The noise canceling function may not work properly unless

the headphones are put on firmly.

• 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).

You can fasten the battery box by its clip on a shirt pocket.

The headphones and the battery box can also be separately
stored in the partitioned carrying case (supplied).

• 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, first 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.

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.

As headphones reduce outside sounds, they may cause a
traffic 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 AV

equipment.

• Check that the connected AV equipment is turned on.
• Turn up the volume of the connected AV equipment.
• Replace the battery.

• Turn down the volume of the connected AV equipment.
• Replace the battery.

Type

dynamic, closed

Driver units

13.5 mm, dome type (CCAW adopted)

Power handling capacity

50 mW

Impedance

20 

Ω

 at 1 kHz

(when the power is on)
8.5 

Ω

 at 1 kHz

(when the power is off)

Sensitivity

102 dB/mW (when the power is on)
100 dB/mW (when the power is off)

Frequency response

8 – 22,000 Hz

Frequency range of active noise attenuation

50 – 1,500 Hz more than 12 dB at
200 Hz

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.

Connect the headphones to the AV equipment.

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 fits the hole of your ear snugly.

Unless the earbuds correctly fit your ears, noise canceling
will not function.
Adjust the earbuds position to sit on your ear comfortably,
and push them into the inside of your ears so that they fit
your ears snugly.

Turn on the power of the headphones.
The power indicator lights in red. The power
switch is located on the battery box. When
power is turned on, ambient noise is reduced,
and you can listen to music more clearly at a
lower volume.

Turn on the power of the AV equipment.

* “WALKMAN” and “WALKMAN” logo are registered

trademarks of Sony Corporation.

When the power switch is set to on, noise canceling can be
deactivated while the MONITOR button is pressed so that
you can hear ambient sound.

• The supplied plug adaptor can be connected to the dual or

stereo mini jacks of in-flight music services.

• Do not use the headphones when use of electronic

equipment is prohibited or when use of personal
headphones for in-flight 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.

• Noise canceling headphones reduce ambient noise, and

provide a quieter environment to enhance audio
entertainment. Ambient sound is reduced by synthesizing
with a sound in opposite phase produced by the noise
canceling circuit.

• Ultra compact headphones fits comfortably in the ears and

closed type headphone structure delivers deep bass sound.

• 3 sizes soft silicon rubber earbuds are used for stable and

comfortable fit in the ears.

• Operates as passive headphones when noise canceling

circuit is not activated.

• Built-in monitor function to hear surrounding sound

without taking off the headphones.

• Plug adaptor is supplied to connect directly to stereo or

dual jack of in-flight music services.

Open the lid on the rear of the battery box.

Insert one R03 (size AAA) battery, matching
the + and – on the battery to the + and – in the
battery compartment.

Close the lid.

Open the lid.

Pull the lid lightly in the direction of the arrow.

The battery may jump out when the lid is pulled. Pull the
lid while placing a finger on the battery.

Close the lid.

Store the ribbon in the battery compartment to prevent it
being pinched by the lid.

  

c

  

*

1

1 kHz, 1 mW + 1 mW input

*

2

Time stated above may vary, depending on the temperature
or conditions of use.

Replace the battery with a new one when the POWER
indicator dims.

MDR-NC22

2-888-749-21 (1)

© 2006   Sony Corporation     Printed in Malaysia

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 modifications 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).

The model number is located at the front side of the battery
box.
The serial number is located in the battery box.
Record these numbers in the spaces provided below. Refer
to them whenever you call upon your Sony dealer regarding
this product.

Model No. MDR-NC22 
Serial No. 

This symbol on the product or on its packaging indicates that
this product shall not be treated as household waste. Instead it
shall be handed over to the applicable collection point for the
recycling of electrical and electronic equipment. By ensuring
this product is disposed of correctly, you will help prevent
potential negative consequences for the environment and human
health, which could otherwise be caused by inappropriate waste
handling of this product. The recycling of materials will help to
conserve natural resources. For more detailed information about
recycling of this product, please contact your local Civic Office,
your household waste disposal service or the shop where you
purchased the product.



Operating Instructions

Mode d'emploi

Manual de instrucciones



Sony alkaline battery LR03/AM-
4 (N)

Sony battery R03/UM-4 (NU)

50 hours*

2

22 hours*

2

La validité du marquage CE est limitée uniquement aux
pays dans lesquels il fait force de loi, c’est-à-dire
principalement dans les pays de I’EEE (Espace
Économique Européen).

Ce symbole, apposé sur le produit ou sur son emballage, indique
que ce produit ne doit pas être traité avec les déchets ménagers.
Il doit être remis à un point de collecte approprié pour le
recyclage des équipements électriques et électroniques. En
s’assurant que ce produit est bien mis au rebut de manière
appropriée, vous aiderez à prévenir les conséquences négatives
potentielles pour l’environnement et la santé humaine. Le
recyclage des matériaux aidera à préserver les ressources
naturelles. Pour toute information supplémentaire au sujet du
recyclage de ce produit, vous pouvez contacter votre
municipalité, votre déchetterie ou le magasin où vous avez
acheté le produit.

• Ecouteurs antibruit réduisant le bruit ambiant et

permettant d’écouter la musique dans un environnement
plus calme. Les sons environnants sont réduits en les
synthétisant avec un son en opposition de phase produit
par le circuit anti-bruit.

• Ecouteurs ultra compact s’adaptant parfaitement aux

oreilles et structure de type fermée permettant d’obtenir
des sons graves profonds.

• 3 tailles d’oreillettes en caoutchouc de silicone souples

offrant confort d’utilisation et stabilité une fois mises en
place.

• Fonctionnent comme écouteurs passifs lorsque le circuit

antibruit est désactivé.

• Fonction de contrôle intégrée pour entendre les bruits

environnants sans retirer le casque.

• Adaptateur de fiche fourni pour le raccordement direct

aux prises stéréo ou doubles des services de musique en
vol.

Ouvrez le couvercle arrière du boîtier de la pile.

Insérez une pile R03 (AAA) en faisant
correspondre les polarités + et – de la pile avec
les repères + et – du logement des piles.

Refermez le couvercle.

Ouvrez le couvercle.

Tirez légèrement le couvercle dans le sens de la
flèche.

La pile peut être éjectée lorsque vous tirez le couvercle.
Placez un doigt sur la pile tout en tirant le couvercle.

Refermez le couvercle.

Rangez le ruban dans le logement des piles afin d’éviter
de le coincer dans le couvercle.

  

c

  

*

1

1 kHz, 1 mW + 1 mW en entrée

*

2

la durée mentionnée ci-dessus peut varier en fonction de la
température ou des conditions d’utilisation.

Remplacez la pile par une neuve lorsque l’indicateur
POWER devient sombre.

Les protège-tympans de taille moyenne (M) sont déjà fixés
sur les écouteurs lors de l’achat. Si vous constatez que les
protège-tympans de taille moyenne (M) ne conviennent pas
à vos oreilles, remplacez-les par les protège-tympans plus
petits (S) ou plus grands (L) fournis.

Pile alcaline Sony LR03/
AM-4 (N)

Pile Sony R03/UM-4 (NU)

50 heures*

2

22 heures*

2

#

#

Cord

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. 39 g (1.4 oz) including battery
box, cord, and battery

Earbuds (S 

× 2

, M 

× 2

, L 

× 2

)

Carrying pouch (1)
Plug adaptor for in-flight use* (single/dual) (1)
Operating Instructions (1)

* May not be compatible with some in-flight music services.

Design and specifications are subject to change without
notice.