Sony Support

Article ID : 00276043 / Last Modified : 05/13/2024Print

Can't adjust the headphone volume (WF-SP900)

    Follow these steps to troubleshoot this issue:

    1. Tap the sensors on the headphones to increase or decrease the volume.

      • To increase the volume: Tap the sensor on the right unit twice quickly.
      • To decrease the volume: Tap the sensor on the left unit twice quickly.
      • You can increase or decrease volume continuously if you continue to tap the sensor more than twice quickly.

      Note: The tap sensors can be locked to prevent unintentional volume operations. To lock or reactivate the volume operations with the tap sensors, hold down the button on the right unit for about two seconds. If you hear the voice guidance Tap function OFF, the tap sensor will be reactivated.

      The volume can be adjusted
      The tap sensor operations resolved the issue.
      The volume can't be adjusted
      Go to the next troubleshooting step.

    2. Open the Sony | Headphones Connect app, and move the slide bar next to the speaker icon in the Status tab to increase or decrease the volume.

      The volume can be adjusted
      The volume level in the app may have been too high or too low. You may need to adjust the volume through the app in some situations.
      The volume can't be adjusted
      Go to the next troubleshooting step.

    3. Adjust the volume on the connected device.
      For details, refer to the device manual or support site for the manufacturer.

      Note: Depending on the connected device, the volume may not sync with the headphones. If you can't get the desired volume by adjusting the headphones or device volume only, adjust the volume on both devices.

      The volume can be adjusted
      You may need to adjust the volume on the device in some situations.
      The volume can't be adjusted
      Go to the next troubleshooting step.

    4. If the streaming app has volume settings, adjust the volume using those settings.

      The volume can be adjusted
      The issue was caused by the app settings.
      The volume cannot be adjusted
      Go to the next troubleshooting step.

    5. Restart the headphones.
      Refer to the Resetting the headphones page for instructions.

      The volume can be adjusted
      The issue may have been caused by a temporary malfunction.
      The volume can't be adjusted
      Go to the next troubleshooting step.

    6. Initialize the headphones.

      Note: All the data (music files, pre-installed data, etc.) saved to the main memory of the player will be erased. Before initializing, backup any important data.

      Refer to the Initializing the headphones page for instructions.

      The volume can be adjusted
      The issue may have been caused by a temporary malfunction.
      The volume cannot be adjusted
      The headphones may be malfunctioning, and require repair.  Go to Product Repair. 

    Go to the Headphones Troubleshooting Guide