Sony MDR-EX155APB - User Manual

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©2017   Sony Corporation 

Printed in Thailand

Earbuds / Oreillettes / Almohadillas

Keep earbuds clean. To clean the 

earbuds, wash them with a mild 

detergent solution.

Note on static electricity

Static electricity accumulated in the body may cause 

mild tingling in your ears.

To minimize the effect, wear clothes made from 

natural materials.

iPhone is a trademark of Apple Inc., registered in the 

U.S. and other countries.

Xperia is a trademark of Sony Mobile 

Communications AB.

Android and Google Play are trademarks or registered 

trademarks of Google, Inc.

Optional replacement earbuds can be ordered from 

your nearest authorized Sony retailer or


You are cautioned that any changes or modifications 

not expressly approved in this manual could void 

your authority to operate this equipment.


High volume may affect your hearing. 

For traffic safety, do not use while 

driving or cycling.

Install the earbuds firmly. If an earbud 

accidentally detaches and is left in 

your ear, it may cause injury.

** Availability of the “VoiceOver” feature depends on 

iPhone and its software version.




 Closed, dynamic

Driver unit:

 9 mm, dome type (CCAW Voice Coil)

Power handling capacity:

 100 mW (IEC*)


 16 Ω at 1 kHz


 103 dB/mW

Frequency response:

 5 Hz – 24,000 Hz


 Approx. 1.2 m (47 




 in), Litz wire, Y-type


 L-shaped gold-plated 4-pole mini plug


 Approx. 3 g (0.11 oz) without cable



 Electret condenser


Omni directional

Open circuit voltage level:

 –40 dB (0 dB = 1 V/Pa)

Effective frequency range:

 20 Hz – 20,000 Hz

Supplied accessories

Hybrid silicone rubber earbuds: SS (1 line) (2), S 

(2 lines) (2), M (3 lines) (attached to the unit at the 

factory) (2), L (4 lines) (2) / Cable adjuster (winds cable 

up to 50 cm (19 




 in)) (1)

*  IEC = International Electrotechnical Commission

Design and specifications are subject to change 

without notice.


Stereo headphones

Compatible products

Use this unit with smartphones.


  If you connect to an unsupported smartphone, the 

microphone of this unit may not function, or the 

volume level may be low. 

  This unit is not guaranteed to operate digital music 


Using the Multi-function button*

Press once to answer the call, press again to end; 

press to play/pause a track.

Available operations for iPhone

Plays/pauses a track of the connected iPhone product 

with a single press. Skips to the next track with a 

double press. Skips to the previous track with a triple 

press. Starts the “VoiceOver**” feature with a long 

press (if available).

Hold down for about two seconds to reject an 

incoming call. When you let go, two low beeps 

confirm the call was rejected.
*  The button function may vary depending on the 


Multi-function button

Touche multifonctions

Botón multifunción

How to use/Utilisation/Utilización

*  Smart Key es una aplicación para Xperia™, 

Android™ OS 4.0 y versiones posteriores. Es posible 

que la aplicación no esté disponible en algunos 

países o regiones y que no pueda utilizarse con 

modelos de teléfonos inteligentes no compatibles.


If you install the Smart Key app* from Google Play™ 

store, the track and volume adjustment on your 

smartphone will be enabled with multi-function 

*  Smart Key is an application for Xperia™, Android™ 

OS 4.0 and above. The app may not be available in 

some countries and/or regions, and may not be 

used with unsupported smartphone models.

Si vous installez l’application Smart Key* à partir de la 

boutique Google Play™, le réglage de la plage et du 

volume de votre téléphone intelligent sera activé à 

l’aide de la touche multifonctions.
*  Smart Key est une application pour Xperia™, 

Android™ OS 4.0 et version ultérieure. L’application 

pourrait ne pas être disponible dans certains pays 

et/ou dans certaines régions et ne pas fonctionner 

avec des modèles de téléphone intelligent qui ne 

sont pas pris en charge.

Si instala la aplicación* Smart Key desde la tienda 

Google Play™, el ajuste de pista y volumen de su 

teléfono inteligente se habilitará con el botón 










Stereo Headphones

Operating Instructions

Mode d’emploi

Manual de instrucciones




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