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Sony SupportBluetooth Headphones

LinkBuds S / WF-LS900N

LinkBuds S / Included components may vary by country or region of purchase: WF-LS900N

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Popular Topics

There is no sound from the earbud headphones, or sound is heard only from one side
Can't change the volume on the earbud headphones
Will the headphones charge when the message "A USB device has exceeded the power limits" is displayed on the connected computer?
How do I replace the earpads or earbuds on my headphones?
There is an abnormal beep sound, the touch sensor does not work, or the headphones restart unexpectedly
How to use Bluetooth headphones for video calls on a computer
Connect the headphones to two devices simultaneously (multipoint connection)
Headphones troubleshooting guide

Product Alerts

  • End of support notification for products using the Windows 10 operating system
  • 3rd party sign-in IDs ending for Sony cloud services
  • Microsoft Soundscape Ending
  • Notice of Limited Warranty Updates for Sony Electronics Inc. and Sony of Canada Ltd.

Downloads

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  • System Software
Release Date
  • Firmware Update to Version 4.3.1Release Date: 10/21/2025
    10/21/2025
  • Sony | Music CenterRelease Date: 03/16/2026
    03/16/2026
  • Sony | Sound Connect (Formerly Sony | Headphones Connect)Release Date: 02/12/2026
    02/12/2026

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Manuals & Warranty

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File Size
Release Date
  • [PDF]Warranty(3.7 MB)Release Date: 05/28/2019
    3.7 MB
    05/28/2019
  • Help Guide (Web manual)File size is not provided.Release Date: 10/01/2024
    10/01/2024
  • [PDF]Reference Guide(313 KB)Release Date: 04/15/2024
    313 KB
    04/15/2024

Product Self-Repair Manual Insert

For availability of repair parts and instructions, please visit the Self Repair section on our Product Repair page.

Purchase Printed Manuals

If you prefer a paper hard copy of a manual listed on this page, you can purchase it from the True Manuals web site.

Questions & Answers

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  • The remaining battery charges of the left and right earbuds are different
  • Can't change the volume on the earbud headphones
  • I hear loud wind noise from the headphones
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Videos

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[VIDEO] How to setup the multipoint connection for Sony True Wireless Earbuds
> Watch this video in the article
Open video player
[VIDEO] What is the Auto Play App for LinkBuds and LinkBuds S models?
> Watch this video in the article
Open video player
[VIDEO] Unboxing and setup of the LinkBuds S Truly Wireless Noise Canceling Earbuds
> Watch this video in the article
Open video player
[VIDEO] Tips for using the Headphones Connect app with the LinkBuds S Truly Wireless Noise Canceling Earbuds
> Watch this video in the article

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