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Help Guide
Wireless Noise Canceling Stereo Headset
WF-1000XM4
Checking the remaining battery charge
You can check the remaining battery charge of the rechargeable batteries of the headset and the charging case.
When you put on the headset
When you remove the headset from the charging case and put the headset units into both ears, the voice guidance
indicating the remaining battery charge of the headset can be heard via the left and right units of the headset
respectively.
“Battery about XX %” (The “XX” value indicates the approximate remaining charge.)
“Battery fully charged”
The remaining battery charge indicated by the voice guidance may differ from the actual remaining charge in some
cases. Please use it as a rough estimate.
When the remaining charge becomes low
If a warning beep sounds and the voice guidance says, “Low battery, please recharge headset”, charge the headset as
soon as possible.
When the battery becomes completely empty, a warning beep sounds, the voice guidance says, “Please recharge
headset. Power off”, and the headset automatically turns off.
When you are using iPhone or iPod touch
When the headset is connected to an iPhone or iPod touch over an HFP Bluetooth connection, it will show an icon that
indicates the remaining battery charge of the headset on the screen of the iPhone or iPod touch.
A: Remaining battery charge of the headset
The approximate remaining charge is shown at 10 different levels. B through E are display examples.
B: 100%
C: 70%
D: 50%
E: 10% or lower (requires charging)
The remaining battery charge of the headset is also displayed on the widget of an iPhone or iPod touch running iOS 11
or later. For more details, refer to the operating instructions supplied with the iPhone or iPod touch.
The remaining charge which is displayed may differ from the actual remaining charge in some cases. Please use it as a
rough estimate.
When you are using an Android™ smartphone (OS 8.1 or later)
When the headset is connected to an Android smartphone via HFP Bluetooth connection, select [Settings] - [Device
connection] - [Bluetooth] to display the remaining battery charge of the headset where the paired Bluetooth device is
displayed on the smartphone’s screen. It is displayed in 10 different levels such as “100%”, “70%”, “50%”, or “10%”. For
details, refer to the operating instructions of the Android smartphone.
The remaining charge which is displayed may differ from the actual remaining charge in some cases. Please use it as a
rough estimate.
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