The headphone volume cannot be adjusted. (WF-SP700N)

1. Use the Sony | Headphones Connect app to adjust the volume.
   To adjust the volume using the Sony | Headphones Connect app, move the slide bar next to the speaker icon in the Status tab.
   

   The volume can be adjusted

   You can use the Sony | Headphones Connect app to adjust the volume.

   The volume cannot be adjusted

   Go to the next troubleshooting step.

2. Adjust the volume on the connected device.
   For details on how to adjust the volume on the connected device, refer to the device manual or support site.

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

   The volume can be adjusted

   You may need to adjust the volume on the device in some situations.

   The volume cannot be adjusted

   Go to the next troubleshooting step.

3. If the app has the volume settings, try adjusting the volume using those settings.

   The volume can be adjusted

   The issue may have been caused by the app settings.

   The volume cannot be adjusted

   Go to the next troubleshooting step.

4. Reset the headphones.

   Visit the Help Guide to reset the headphones.

   The volume can be adjusted

   The issue may have been caused by a temporary malfunction.

   The volume cannot be adjusted

   Go to the next troubleshooting step.

5. Initialize the headphones.

   Note: Initialization returns the headphones to the factory settings and all Bluetooth pairing information is deleted.

   Visit the Help Guide to initialize the headphones.

   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 service may be required.

Go to the Headphones Troubleshooting Guide