Sony MDR-AS40EX Stereo Earphone
Item No.
Mfg Part No.
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Product Information for Sony MDR-AS40EX Stereo Earphone

Highlights for Sony MDR-AS40EX Stereo Earphone

  • Connectivity Technology:Wired
  • Sound Mode:Stereo

Marketing Information

Perfect for fast movement and high impact workouts, the MDR-AS40EX active style earphone give you the option of using the detachable soft hangers when the going gets rough or just the earbuds for mild activity. Either way, you will appreciate the crisp sound with rich bass and the moisture guard that wicks sweat away from the speakers.

General Information

  • Manufacturer: Sony Corporation
  • Manufacturer Part Number: MDRAS40EX
  • Product Name: MDR-AS40EX Stereo Earphone
  • Manufacturer Website Address:
  • Product Type: Earphone
  • Product Model: MDR-AS40EX
  • Brand Name: Sony
  • Technical Information

  • Sound Mode: Stereo
  • Connectivity Technology: Wired
  • Minimum Frequency Response: 10Hz
  • Maximum Frequency Response: 23kHz
  • Plating: Gold Plated
  • Operating Distance: 2ft
  • Physical Characteristics

  • Form Factor: Open
  • Weight: 0.212 oz
  • Miscellaneous

    Package Contents

  • MDR-AS40EX Stereo Earphone
  • 3 x Earbuds (S, M, L)
  • Extension cord (2 ft)
  • Hard carrying case
  • Clip
  • Warranty


  • Host Interface: Mini-phone
  • Earpiece

  • Earpiece Technology: Dynamic
  • Earpiece Design: Over-the-ear
  • Earpiece Type: Binaural
  • Controls/Indicators

    Digital Signal Processing

    Network & Communication