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Retail Price: $699.99

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Westone - W40 - In-Ear Headphones with Bluetooth Cable

Westone - W40 - In-Ear Headphones with Bluetooth Cable 

WESTONE W40 Headphones

The four balanced-armature driver design of the W40 will take your listening to an entirely new level. The award-winning sound of the W40 features a beautifully-flat frequency response with articulate lows, precise mid-range, sparkling highs, and performance that is perfect for recorded and mastered music. The Westone W40 is the ideal first earphone for those music lovers and critical listeners looking to get the absolute most from their listening experiences. Ideal for all personal audio and video devices.

  • TRUE-FIT® TECHNOLOGY: 60 years of experience designing products for the ear, has resulted in a universal-fit earpiece that is compact, low-profile, lightweight, and extremely comfortable. Our proprietary eartips enhance the performance of the W40 by ensuring a great fit and seal, right out of the box.
  • BALANCED-ARMATURE DRIVERS: Westone’s proprietary balanced-armature drivers provide enhanced sonic detail and frequency range that extends well beyond other in-ear solutions.
  • WESTONE BLUETOOTH CABLE: Full-resolution Bluetooth Cable uses aptX® technology to deliver extraordinary detail, clarity, and a dynamic soundstage that has to be heard to be appreciated. The Westone Bluetooth Cable features; 8 hours of battery life, a 10 meter/ 32 foot range, has a water and dust resistant IPX-4 rating, and features our exclusive MMCX Audio® connectors, which allows the Bluetooth Cable to be used with any custom-fit or universal-fit earpiece
  • HIGH_DEFINITION SILVER MMCX® CABLE: Westone’s High-Definition Silver MMCX® Cable features four strands of low-resistance, pure-silver plated copper alloy, braided around a center strengthening core. Low resistance silver-plated copper wire improves electrical conductivity, providing extraordinary clarity and detailed sound reproduction.
  • TECHNICAL SPECS: The Westone W40 features a full-range, four balanced-armature driver with 118 dB SPL @ 1mW sensitivity, 10Hz - 18kHz frequency response, and an impedance of 31 ohms @ 1kHz, 25dB Passive Noise Attenuation
  • IN THE BOX + WARRANTY: Purchase includes: W40 Universal-Fit Earphones, High Definition Silver MMCX cable, Westone Bluetooth Cable, 5 Pair Patented STAR™ Silicone Tips, 5 Pair True-Fit™ Foam Tips, Exchangeable Metal Faceplates, Deluxe Zippered Carrying Case, 2 Year Limited Warranty.


  • True-Fit Technology
  • Balanced-Armature Drivers
  • Westone Bluetooth Cable
  • 3-Button MFI Control System + Microphone
  • Included In-The-Box:
    • W20 Universal-Fit Earphones
    • 3-Button Cable with Microphone
    • Westone Bluetooth Cable
    • 5 Pair Patented STAR™ Silicone Tips
    • 5 Pair True-Fit™ Foam Tips
    • Exchangeable Faceplates
    • Premium Small Carrying Case
    • 2 Year Limited Warranty


        118 dB SPL @ 1 mW

Frequency Response
        10 Hz - 18 kHz

        31 ohms @ 1 kHz

Passive Noise Attenuation
        25 dB

        4 balanced armature drivers with a 3-way crossover.

        0.445 ounces/12.7grams

        Epic Replaceable cable and MFI G2 cable

Cable Length
        52” (132 cm) / 27.5” (70 cm)

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