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REFURBISHED - Noise Canceling Headphones MDR-NC40

Model number: MDR-NC40
Rated 3 out of 5 stars
Relax your mind with a soothing, uninterrupted listening experience. These lightweight and comfortable noise-canceling headphones deliver tranquility no matter where you are.

ADDITIONAL IMAGES:

$ 99 .99

$35.97

Earn 36 Sony Rewards points on this purchase.

Shut out up to 80% of the ambient noise around you with the MDR-NC60 noise canceling headphone. Great for work, traveling or just when you're trying to sleep in a loud place, they provide a calming atmosphere no matter where you are. The pressure-relieving cushion offers premium comfort, and the lightweight, folding design makes storing them a breeze. Includes a premium travel case and "AAA" batteries.

Noise canceling technology:

Noise canceling headphones reduce ambient noise and provide a quieter environment to enhance audio entertainment. The headphones have an inside microphone on each earpiece that work with an electronic circuitry to create an opposite sound wave to reduce wave. Ambient sound is reduced by synthesizing with a sound in opposite phase produced by the noise canceling circuit.

Unique feature:

Lightweight design with a built-in monitor function allows you to hear surrounding sound without taking off the headphones. Perfect for listening to announcements, flight attendants, or any external sound without the need to take the headphones off.

Design:

Soft and comfortable on-ear fit with pressure-relieving urethane ear cushions. Super compact foldable design for carrying and storing in the included premium travel case.

Ideal for:

Loud, noisy environments – planes, trains, buses, work or dorms.

Plug adapter:

A supplied plug adapter connects directly to stereo or dual jack of in-flight music services.3

Noise reduction:

Reduces noise up to 90% (10 dB at 300 Hz) when noise canceling circuit is switched on1.

Passive function:

The headphones can operate as passive headphones when the noise canceling circuit is not activated. It allows the headphone to function as regular stereo headphones without using the battery.

Battery:

Small battery box for “AAA” battery.

Product Specifications

Hardware

  • Cord : 4.9 foot OFC litz cord (Including battery box)
  • Headphone Type : Closed, dynamic 

Audio

  • Driver Unit : 30mm Dynamic, closed, dome-type
  • Frequency Response : 14 - 22,000Hz 
  • Impedance : 68 ohms at 1kHz (on); 30 ohms at 1kHz (off)
  • Noise Level : ON/OFF switch on battery box
  • Sensitivity (db) : 102dB/mW (on); 100dB/mW (off)

Power

  • Battery Indicator : yes
  • Battery Life (Approx) : Up to 40H (with alkaline battery)2
  • Battery Type : DC1.5V, 1 ROE (size AAA) battery 
  • Power Handling Capacity : 50mW 

General

  • Design : Premium over the head, Noise canceling
  • Headband : Adjustable and Foldable
  • Magnet : Neodymium 
  • Plug : L shaped stereo mini plug (Gold)
  • Type of Use : Noise canceling

Weights and Measurements

  • Cord Length (Approx.) : 4.9 foot (1.5m) including battery box
  • Weight (Approx.) : 3.8 oz. (107 g)-without battery, 4.2 oz (119 g)- with battery

In the Box

  • Inflight plug adapter 
  • AAA Battery (Manganese)
  • Battery box and cord
  • Carrying Case 
  • Limited warranty card 

Product Profile

Support

Product Warranty

  • Rechargeable AAA Batteries (4-Pack)

    Rechargeable AAA Batteries (4-Pack)

    $18.00

  • Charger + 2 AA 1000mAh Batteries

    Charger + 2 AA 1000mAh Batteries

    $14.99

  • Quick Charger + 4 AA Batteries

    Quick Charger + 4 AA Batteries

    $38.99

  • Rechargeable AAA Batteries (4-Pack)

    Rechargeable AAA Batteries (4-Pack)

    $20.00

  • Charger + 4 AA 2500mAh Batteries

    Charger + 4 AA 2500mAh Batteries

    $24.99

  • Rechargeable AAA Batteries (2-Pack)

    Rechargeable AAA Batteries (2-Pack)

    $9.00

MDR-NC40 3 5 2 2
Great buy at Weekly Special price Very good noise cancelling. Sound in noise cancelling mode is very good, but probably a little too much bass for some tastes, Sound with noise cancelling off is still quite acceptable so if battery were to die still can enjoy music. November 20, 2011
Cheap construction, uncomfortable Earpiece fell off of headpiece after 7 months of sparse use, no rough treatment or misuse. Appeared to be held on by a screw with an inaccessible head and a piece of cheap plastic superglued onto the headpiece. Reason for sparse use was that they made my ears hurt after an hour of use, and the sound quality was horrible if the noise canceling wasn't switched on (only wanted to use it when necessary to conserve battery power!). August 6, 2009
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VIEW FOOTNOTES


1. Frequency range of active noise attenuation is 40 – 1,500 Hz, more than 10 dB at 300 Hz.

2. Using 1 Alkaline LR03/AM-4(N) (size AAA) battery. Actual time may vary based on product settings, usage patterns, battery and environmental conditions. Time stated may vary based on temperature or conditions of use.

3. May not be compatible with some in-flight audio/video services.

©2009 Sony Electronics Inc.

Sony is a trademark of Sony. All other trademarks are property of their respective owners.

Features and specifications are subject to change without notice. Non-metric weights and measures are approximate.

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