Sony MDR-EX57SL Operating Instructions

Stereo
Headphones
立体声耳机
MDR-EX57SL
©2009 Sony Corporation Printed in Thailand
索尼公司 泰国印刷

Cross-section of earbud
Low-density silicone
High- density silicone



1
Earbud
L R


Sectional View


4-152-336-41(1)
Operating Instructions
使用说明书
2
1
2 3
Coloured parts

English
Stereo headphones
Features
 Slim housing for a comfortable fit
 400kJ/m high power neodymium magnets produce high-resolution treble and
3
midrange with powerful bass
 Angled earbud structure for stable and comfortable wearing
 Convenient cord adjuster supplied
 Hybrid silicone rubber earbuds (S, M, L) supplied for secure fitting and long-term
wearing comfort (see fig. )
 Handy carrying pouch supplied
How to use
How to use the supplied cord adjuster (see fig. )
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 50 cm. If you wind more, the cord
comes off from the cord adjuster easily.)
1
Wind the cord.
2
Push cord into slot hole to secure in place.
Note
Do not wind the plug or split section of the cord, as it will strain the cord and may cause a wire break.
How to use the extension cord (see fig. )
Insert the stereo mini plug fully into the jack until you hear a click.
Wearing the headphones (see fig. )
1
Determine right and left headphone and hold them as in the illustration.
2
Fit the headphones into your ears snugly, as in the illustration.
3
Adjust the earbud to fit snugly in your ear.
How to install the earbuds correctly (see fig. )
If the earbuds do not fit your ears correctly, low-bass sound may not be heard. To enjoy
better sound quality, change the earbuds to another size, or adjust the earbuds position to
sit on your ears comfortably and fit your ears 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)
Small Large
 
S M L
(Orange) (Green) (Light blue)
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 dry soft cloth.
To attach an earbud (see fig. -)
Push the parts inside of the earbud into the headphone until the projecting part of the
headphone is fully covered.
Cleaning the earbuds
Remove the earbuds from the headphones, and wash them with a mild detergent solution.
Specifications
Type: Closed, dynamic
Driver unit: 9 mm, dome type (CCAW)
Power handling capacity:
100 mW (IEC*)
Impedance: 16 Ω at 1 kHz
Sensitivity: 100 dB/mW
Frequency response:
6 – 23,000 Hz
Cord: 0.6 m, OFC litz cord neck-chain
Mass: Approx. 3 g
Supplied accessories
Earbuds (S × 2, M × 2, L × 2)
Carrying pouch (1)
Cord adjuster (1)
Extension cord (90 cm, Gold plated stereo mini jack  Gold-plated L-type stereo mini plug) (1)
* IEC = International Electrotechnical Commission
Design and specifications are subject to change without notice.
Precautions
 Please keep your headphones clean at all times especially inside the rubber earbud.
(see fig. )
If any dust or ear wax inside the earbud, you may experience some listening difficulties.
 During dry weather, you may experience mild pain in your ears. This is not by
malfunction of the headphones, but is due to static electricity accumulated in your
body. It is reduced by wearing clothes made of natural materials that do not generate
static electricity so easily.
 Listening with headphones at high volume may affect your hearing. For traffic safety,
do not use while driving or cycling.
 The earbuds may deteriorate due to long-term storage or use.
Optional replacement earbuds can be ordered from your nearest Sony dealer.