English
Stereo headphones
Features
40 mm driver units for powerful, expressive sound
Open headphones with natural sound field
Ideal fit to your ear shape with flexible ear fit mechanism
Comfortable fitting with fabric earpads
How to use
These headphones are for use with a stereo mini jack.
How to wear the headphones (see fig. )
Extend the headband to adjust the length.
Wear the headphone marked
on your right ear, and the one marked
on your left ear.
There is a tactile dot on the unit marked to distinguish the left side.
Flexible ear fit mechanism (see fig. )
When wearing the headphones, the driver units from which the sound originates
conform to various ear shapes, providing a comfortable fit.
How to confirm the model name (see fig. )
The location of the model name (“MDR-MA300”) is shown in the illustration. If you
have a question about the product, check the model name beforehand to let us know
your model.
Note
When checking the model name, do not move the headphones beyond its normal range.
Specifications
Type: Open, dynamic / Driver unit: 40 mm, dome type (CCAW Voice Coil) / Power
handling capacity: 1,000 mW (IEC*) / Impedance: 40 Ω at 1 kHz / Sensitivity:
102 dB/mW / Frequency response: 10 Hz – 24,000 Hz / Cord: 3 m, Y type / Plug: Gold-
plated stereo mini plug / Mass: Approx. 245 g without cord
Supplied accessory: Operating Instructions (1)
* IEC = International Electrotechnical Commission
Design and specifications are subject to change without notice.
Precautions
Listening with headphones at high volume may affect your hearing. For traffic safety,
do not use while driving or cycling.
Do not subject the headphones to excessive shock.
Handle the driver units carefully.
Do not put weight or pressure on the headphones as it may cause the headphones to
deform during long storage.
The earpads may deteriorate due to long-term storage or use.
Do not leave the jack plug dirty otherwise the sound may be distorted.
Clean the headphones with a soft dry cloth. Do not blow on the units when cleaning.
Do not allow the plug to become dirty, otherwise the sound may deteriorate.
Do not leave the stereo headphones in a location subject to direct sunlight, heat or
moisture.
Optional replacement earpads can be ordered from your nearest Sony dealer.
This mark is valid only in those European countries where it is legally
applicable.
Tactile dot
Earpad
(large)
Earpad
(small)
制造商: 索尼公司
地址: 日本国东京都港区港南1-7-1
总经销商: 索尼（中国）有限公司
地址: 北京市朝阳区太阳宫中路12号楼
冠城大厦701
原产地: 中国
出版日期: 2011年11月
产品中有毒有害物质或元素的名称及含量
使用环境条件：5度～35度 （∶不含有，×∶含有）
部件
名称
有毒有害物质或元素
铅
（Pb）
汞
（Hg）
镉
（Cd）
六价铬
（Cr（VI））
多溴联苯
（PBB）
多溴二苯醚
（PBDE）
外壳 ×
附件
：表示该有毒有害物质在该部件所有均质材料中的含量均在
SJ/
T11363-2006标准规定的限量要求以下。
×：表示该有毒有害物质至少在该部件的某一均质材料中的含量超
出SJ/T11363-2006标准规定的限量要求。
Driver unit
Level profile
Prominent profile
1
2
