When charging via USB, be sure to use the supplied USB Type-C cable. Using a different cable may prevent charging.
Charging may not be successful depending on the type of USB AC adaptor.
The left or right headset unit works as the main headset unit, so it consumes the rechargeable battery faster than the other unit.
There is a difference in charging time between the left and right headset units, but this is not a malfunction.
The left or the right headset unit can be the “main headset unit” depending on the usage environment.
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 once again.
If the indicator (orange) on the charging case lights up for about 3 seconds and then turns off when the left and right headset units
are removed from the charging case, the remaining battery charge of the charging case is low. Charge the charging case.
If the indicator on the charging case does not turn on even when the left and right headset units are removed from the charging
case, the battery charge of the charging case is empty. Charge the charging case.
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 charging and discharging several times. If you store the headset for a long time, charge the battery 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 charging case lid to prevent the battery of the charging case from being consumed.
If there is a problem with the rechargeable battery of the headset or the charging case and something unusual is detected during
charging, the indicator (orange) on the charging case flashes. When charging wirelessly, charging may slow down or stop at high
or low temperatures depending on the wireless charger you are using.
It is recommended to charge in a place with an ambient temperature between 15 °C and 30 °C (59 °F - 86 °F). Charging outside
of this range may result in less efficient charging.
If the problem persists, consult your nearest Sony dealer.
If the headset is not used for a long time, the indicator (orange) on the charging case may not immediately light up when
charging. Wait a moment until the indicator (orange) lights up.
If the usage hours of the built-in rechargeable battery decrease significantly, the battery should be replaced. Consult your nearest
Sony dealer.
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.
Observe the following precautions when performing wireless charging. Failure to do so may cause fire, burns, injury, or electric
shock.
Do not attach metallic objects (such as stickers made of materials containing metal) to the wireless charger or the charging
case.
Remove the cover, etc. attached to the charging case, and do not place metallic objects (such as straps or clips containing
metal) on the wireless charger.
If something unusual occurs during wireless charging such as unusual odor, unusual sound, smoke, overheating, discoloration,
or deformation, carefully and safely remove the charging case from the wireless charger.
When you have medical electric devices such as pacemakers or defibrillators implanted, consult your doctor before using the
wireless charger. Radio waves may affect the operations of the medical electric devices.
Do not bring IC cards, magnetic cards, or magnetized objects close to the wireless charger. Doing so may cause IC cards to
malfunction. Magnetic data may be erased from cash cards, credit cards, telephone cards, or floppy disks. When strong
magnetism is brought close by, it may cause the wireless charger to malfunction.
When charging wirelessly, charging may slow down or stop if the charging case becomes misaligned with the wireless charger.
Depending on the wireless charger you are using, the headset and the charging case may become warm during charging or for a
while after charging. However, this is not a malfunction.
Do not charge the headset wirelessly in the following locations.
Where the headset is subject to high levels of humidity, dust or vibration, or near telephones, TVs, radios, etc.
Do not use the wireless charger when it is covered by a blanket, etc.
