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Help Guide
Wireless Noise Canceling Stereo Headset
WF-1000XM4
Charging time is too long.
Check that the charging case and the computer are directly connected, not via a USB hub.
Check that you are using the supplied USB Type-C cable.
Depending on the settings of various functions and the conditions of use, the speed of the battery consumption may
vary between the left and right units.
As a result, the charging time of the batteries may differ between the left and right units, but this is not a malfunction.
It is recommended to charge in a place with an ambient temperature between 15 °C and 35 °C (59 °F - 95 °F).
Efficient charging may not be possible beyond this range.
When charging wirelessly, charging may slow down or stop if the charging case becomes misaligned with the
wireless charging pad.
When charging wirelessly, charging may slow down or stop at high or low temperatures depending on the wireless
charging pad used.
Restart the computer and try the USB connection procedure again in cases other than those stated above.
Related Topic
Charging
Resetting the headset
Initializing the headset to restore factory settings
5-027-983-11(4)
Copyright 2021 Sony Corporation
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