Noise Canceling
Headphones
Operating Instructions
Manual de instrucciones (dorso)
Installing a battery
1 Open the lid of the battery case on the right inner side of the headphone.Slide the battery case lid and unlock it.2 Insert one R03 (size AAA) battery by matching the + and – on the battery to the + and – in the battery case.
Listening to music
1 Connect the headphones to the AV equipment.When connecting to dual or stereo mini jacks of*May not be compatible with some
Folding and unfolding the headphones
FoldingHold the battery case with your right hand and fold the headphones toward you one after another as illustrated.
Battery casePrecautions
•Clean the headphones with a soft dry cloth.•Do not leave the plug dirty otherwise the sound may be distorted.•Be sure to consult a Sony dealer when the earpads become dirty or damaged, or when the headphones require repair work.
•The CE mark on the unit is valid only for products marketed in the European Union.
•Do not leave the stereo headphones in a location subject to direct sunlight, heat or moisture.
Notes on headphonesPreventing hearing damageAvoid 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.
Do not listen with the headphones while driving or cyclingAs your headphones reduce outside sounds, it may cause traffic accident. Also avoid using them where hearing must not be impaired, for example, at a railroad crossing, a site of construction, etc.
MDR-NC5
© 1997 Sony Corporation Printed in ChinaEnglish..| Battery | Approx. hours |
| Sony alkaline LR03 (size | 14 hours |
| AAA) battery |
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| Sony R03 (size AAA) battery | 7 hours |
2 Turn on the power of the headphones. The POWER indicator lights in red. When the power is turned on, ambient noise is reduced, and you can listen to music more clearly at a lower volume.
OFF ON POWER
Battery case 
Hold the battery case with your right hand and unfold the headphones toward you one after another as illustrated.
Battery case
Troubleshooting
No sound•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.Muffled sound•Turn down the volume of the connected AV equipment.•Replace the battery.Power does not turn on•Check if the battery has expired (the POWER indicator dims). Replace the battery with a new one.
Howling•If you cover the microphone of the headphones with your hands, howling may occur.
In this case, move your hands away from the microphone.Specifications
WARNING
To prevent fire or shock hazard, do not expose the unit to rain or moisture.To avoid electrical shock, do not open the cabinet. Refer servicing to qualified personnel only.
For the customers in the U.S.A.
WARNINGThis 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.
Owner’s Record
The model number is located at the left inner side of the headband.The serial number is located inside 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.Features
•Noise canceling headphones reduce ambient noise, and provide a quieter environment to enhance audio entertainment. Ambient sound is synthesized with an
•Plug adaptor is supplied to connect directly to stereo or dual jack of
| for dual jacks | for stereo mini jacks | ||||||
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•Do not use the headphones when use of electronic equipment is prohibited or when use of personal headphones for
If you have any questions or problems concerning the system that are not covered in this manual, please consult the nearest Sony dealer.
After listening to musicTurn off the power of the headphones.Notes•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.
•If you cover the microphone of the headphones with your hands, howling may occur.
In this case, move your hands away from the microphone.
Microphone•You can use the headphones without turning on the power. In this case, the noise canceling function is not active, and the headphones operate as passive headphones.
| General |
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| Type | Dynamic, open |
| Driver units | 30 mm dia: dome type |
| Impedance | 17 ohms at 1 kHz |
| (when the power is on) |
| 35 ohms at 1 kHz |
| (when the power is off) |
| Sensitivity | 100 dB/mW (when the power is |
| on) |
| 98 dB/mW (when the power is off) |
| Frequency response | |
| 30 – 15,000 Hz |
| Frequency range of active noise attenuation | |
| 40 – 1,500 Hz, more than 10 dB at |
| 300 Hz |
| Cord | 1.5m with a |
| mini plug |
| Power source | DC 1.5 V, 1 ⋅ R03 (size AAA) |
| battery |
| Mass | Approx. 125 g (4.4 oz) including |
| battery |
*May not be compatible with some