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Charging the headset when you are outside
A rechargeable battery is built into the charging case. If you charge the charging case in advance, you can use it to
charge the headset when you go out without a power supply. If the charging case is fully charged, you can charge the
headset about 3 times.
The required time for fully charging the left/right unit of the headset is about 1.5 hours.
Notes on charging the headset when you are outside
If the indicator (red) on the charging case flashes and then immediately turns off when the headset is placed in the
charging case, then the remaining battery charge of the charging case is low and the headset cannot be charged.
If the indicator (red) on the charging case does not turn on/flash even when the headset is placed in the charging
case, then the battery charge of the charging case is empty.
System requirements for battery charge using USB
USB AC adaptor
A commercially available USB AC adaptor capable of supplying an output current of 0.5 A (500 mA)
Personal computer
Personal computer with a standard USB port
We do not guarantee operation on all computers.
Operations using a custom-built or homebuilt computer are not guaranteed.
Hint
The headset can be also charged by connecting the charging case to a running computer using the supplied USB Type-C cable.
Note
Charging may not be successful with cables other than the supplied USB Type-C cable.
Charging may not be successful depending on the type of USB AC adaptor.
When the charging case with the headset placed in is connected to an AC outlet or computer, all operations such as turning on
the headset, registering or connecting to Bluetooth devices, and music playback cannot be performed.
The headset cannot be charged when the computer goes into standby (sleep) or hibernation mode. In this case, change the
computer settings, and start charging the headset once again.
If the headset is not used for a long time, the rechargeable battery usage hours may be reduced. However, the battery life will
improve after a few recharges.
If you store the headset for a long time, charge the battery to its full capacity once every 6 months to avoid over-discharge.
If the headset is not used for a long time, it may take longer to charge the battery.
Be sure to close the lid of the charging case to prevent the battery of the charging case from being consumed.
If the headset or the charging case detects a problem while charging due to the following causes, the indicator (red) of the
charging case flashes. In this case, charge once again within the charging temperature range. If the problem persists, consult
your nearest Sony dealer.
Ambient temperature exceeds the charging temperature range of 5 °C – 35 °C (41 °F - 95 °F).
There is a problem with the battery.
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.
If the headset is not used for a long time, the indicator (red) may not light up right away when charging. Please wait a moment
until the indicator (red) lights up.
If the usage hours of the built-in rechargeable battery decreases significantly, the battery should be replaced. Consult your
nearest Sony dealer to replace the rechargeable battery.
Avoid exposure to extreme temperature changes, direct sunlight, moisture, sand, dust, and electrical shock. Never leave the
headset in a parked vehicle.
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