Noise Canceling Headphones

MDR-NC300D

Operating Instructions

Manual de instrucciones



MONITOR

SOUND MODE

VOLUME

HOLD POWER

OPEN

LOCK

NC OPTIMIZE



OPEN

LOCK





OPEN

LOCK

OPEN

LOCK







unlock

lock



Sectional View







Diameter

Height

Colored parts

End of earbud’s

colored part





HOLD POWER

When connecting to the stereo mini

jack of the remote control supplied

with a WALKMAN*, etc.

* “WALKMAN” and “WALKMAN”

logo are registered trademarks of Sony

Corporation.



























Features



Digital noise canceling headphones

with Sony's unique DNC Software

Engine.

Creation of a high-precision

canceling signal delivers outstanding

noise canceling performance.



Automatic AI (Artificial

Intelligence) Noise Canceling

function.

Automatic selection of the optimal

noise canceling mode based on

intelligent analysis of environmental

ambient noise.



Digital Sound Enhancer and full

digital S-Master amplifier delivers

ideal frequency response and

high-quality music reproduction.



Large 16 mm dynamic type driver

units deliver a wide frequency range

and broad dynamic range.



Closed type vertical in-the-ear

headphones for secure fit and

wearing comfort.



7 sizes of hybrid silicone earbuds are

included to ensure ideal seal within

the ear for highest quality sound and

also to provide wearing comfort

during extended listening.



Three sound modes (NORMAL/

BASS/MOVIE) available based on

use or application.



Built-in monitor function to hear

surrounding sound without taking

off the headphones.



Easy-to-use volume control on

control box.

Location and

Function of Parts

(see fig. )

 Microphones

 Earbuds

 SOUND MODE button

Changes the sound mode:

NORMAL, BASS and MOVIE.

 VOLUME(+/–) button

Adjusts the volume.

The VOLUME + button has a

tactile dot for ease of use.

 HOLD/POWER switch

 Battery compartment lid

 MONITOR button

To hear ambient sound for safety.

 LCD display

Indicates the current status or

mode, etc.

 Gold-plated L-type stereo

mini-plug

 NC OPTIMIZE button

Optimizes the noise canceling

sensitivity level.

 Clip holes

To attach the supplied clip.

Installing a battery

(see fig. )

Unlock and open the battery

compartment lid.

Insert an AA/LR6 dry battery, 

end first.

Insert the battery until the internal

stopper holds the battery.

Note

Make sure to insert the battery 

end first. If you fail to do so, it may

cause heat buildup or a fault.

Close and lock the battery

compartment lid.

Battery life

Battery Approx. hours*

Sony alkaline AA/LR6

dry battery

20 hours*

At 1 kHz, 0.1 mW + 0.1 mW output

Time stated above may vary, depending on

the temperature or conditions of use.

When to replace the

battery

When the battery becomes low, the

battery remains status on the LCD

display will change. The unit will turn

off automatically if there is no battery

remains.

Replace the dry battery by checking the

battery remains status.

Note

Take out the battery from the unit if

you do not intend to use the unit for a

long time.

How to replace the battery

Open the battery compartment lid,

unlock the internal stopper, and then

take out the battery.

How to install the

earbuds correctly

(see fig. )

If the earbuds do not fit 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 earbud position to fit

your ears comfortably and snugly.

If the earbuds do not fit your ears, try

another size. Confirm the size of the

earbuds by checking color inside (see

fig.

-).

When you change the earbuds, turn to

install them firmly on the headphones

to prevent the earbud from detaching

and remaining in your ear.

Earbud sizes (inside color)

 

 Diameter 

Small

Large

High – ML

(Blue)

(Purple)

Height

(Orange)

(Green)

(Light blue)

Low

(Red)

(Yellow)

–

To detach an earbud

(see fig. -)

While holding the headphone, twist and

pull the earbud off.

 Tip

If the earbud slips and cannot be

detached, wrap it in a soft dry cloth.

To attach an earbud

(see fig. -)

Push the earbud onto the headphone to

where the end of the earbud’s colored

part aligns with

.

Listening to music

(see fig. )

Connect the headphones to the

listening equipment.

Put on the headphones.

Wear the earpiece marked

 in

your right ear and the one marked

 ( has a tactile dot for ease of

use.) in your left ear.

Adjust the earbuds position to fit

your ears snugly.

Note

If you wear the headphones

incorrectly, noise canceling will not

function.

Adjust the earbud position to sit on

your ears comfortably and fit your

ears snugly.

Slide the HOLD/POWER switch

to POWER side.

appears on the LCD

display, and a short beep sounds

from the headphones.

Turn on the power of the

listening equipment.

Adjust the volume.

A scale bar appears on the LCD

display when you press VOLUME +

or –.

The scale bar changes according to

your volume setting.

Notes



VOLUME + or – of this headphones does

not change volume setting of a connected

AV equipment.



Even if you adjust the volume to the

minimum, some sound leakage in the

headphones may be heard.

Automatic AI Noise

Canceling

Automatic AI Noise Canceling is a

useful function that automatically

selects one of the noise canceling

modes. This function provides the most

effective automatic noise canceling by

constant analyzing of ambient sound.

Noise canceling modes

LCD display

The current noise canceling mode is

displayed.

NC mode A (NC A):

This mode is suitable mainly for low

and midrange frequency noise.

Sony MDR-NC300D - Product Information Manual

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