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 fully charge both the left and right units of the headset once at the same
time.
Notes on charging the headset when you are outside
When the headset is placed in the charging case, if the indicator (red) on the charging case flashes slowly, the
remaining battery charge of the charging case is low. Charge the charging case.
If the indicator (red) on the charging case does not turn on even when the headset is placed in the charging case, the
battery charge of the charging case is empty. Charge the charging case.
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) or more
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.
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 rechargeable 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) on the headset or the charging case may not immediately light up
when charging. Please wait a moment until the indicator (red) lights up.
If the usage hours of the built-in rechargeable battery decrease 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.
When connecting the charging case to a computer, use only the supplied USB Type-C cable, and be sure to directly connect
them. Charging will not be properly completed when the charging case is connected through a USB hub.
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