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SONY MDRAS40EX 3.5mm Connector Earbud Active Style Earphone

  • 10Hz-23KHz
  • 3.5mm Connector
  • 2ft single sided, 2ft extension cord also supplied Cord Length
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Learn more about the Sony MDRAS40EX



General SPEC

Driver Unit
Frequency Response
Input Impedance
16 ohms
100 dB/mW
Ear Coupling
Cord Length
2ft single sided, 2ft extension cord also supplied
0.21 oz. without cord


Earbud-style deliver rich sound with deep bass

Moisture guard for moisture to pass around head phones

Short cord (2 feet) & extension (2 feet) is supplied

3 sizes of soft hangers for secure and comfortable fit

Can also be standard earbuds by detaching soft hangers


Package Contents
MDR-AS40EX Stereo Earphone

3 x Earbuds (S, M, L)

Extension cord (2 ft)

Hard carrying case


Manufacturer Warranty

1 year limited
90 days limited

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 90 days

Customer Reviews of the Sony MDRAS40EX

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  • thomas h.
  • 2/24/2013 1:11:42 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

2 out of 5 eggstoo quiet

Pros: they fit well
are comfortable

Cons: too quiet
cord design

Other Thoughts: these headphones fit very well and are comfortable but they are much too quiet i can barely hear them i have owned two sets of these and both were the exact same, also the cord is either far too short or far too long as it comes with this extension cable that you have to use if you keep whatever player you are using in your pocket overall i dont like these headphones and you can get a much better pair for far less.

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