Help Guide
Wireless Noise Canceling Stereo Headset
WF-1000XM4
Low sound level
Turn up the volume of the connected device.
When the volume adjustment function is assigned to the touch sensor with the “Sony | Headphones Connect” app,
you can adjust the volume on the headset during music playback.
Even when the volume adjustment function has been assigned to the touch sensor with the “Sony | Headphones
Connect” app, you cannot adjust the volume on the headset during a call. Adjust the volume on the connected
device. If you are unable to adjust the volume on the connected device, install the “Sony | Headphones Connect”
smartphone app and adjust the volume on the “Sony | Headphones Connect” app.
Connect the Bluetooth device to the headset once again.
The sound conduits (sound output tubes), air holes, and microphone holes (in 2 locations) of the headset are not
completely watertight. If any water droplets are left in the sound conduits, air holes, or microphone holes (in 2
locations), sound level becomes low temporarily, but this is not a malfunction. See “When you have finished using the
headset” and dry the headset before use.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Note
Depending on the connected device, the volume of the device and the headset may or may not be synced. If the volume on a
device is not synced to the volume on the headset, it will not be possible to use the device to turn up the volume on the headset
once the volume is turned down on the headset.
Related Topic
Resetting the headset
Initializing the headset to restore factory settings
5-027-983-11(1)
Copyright 2021 Sony Corporation
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