Hint
•The headset can be also charged by connecting the headset to a running computer using the
supplied USB Type-C cable.
•If charging starts while the headset is turned on, the headset will turn off automatically.
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 headset 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 detects a problem while charging due to the following causes, the indicator (red)
flashes. In this case, charge once again within the charging temperature range. If the problem
persists, consult your nearest Sony dealer.
oAmbient temperature exceeds the charging temperature range of 5 °C - 35 °C (41 °F - 95
°F).
oThere is a problem with the rechargeable battery.
•If the headset is not used for a long time, the indicator (red) 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 headset 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 headset is
connected through a USB hub.
Replacing the earbuds
For the noise canceling function to be fully effective, select the earbuds that fit your ears the
best.
M-sized long hybrid silicone rubber earbuds come attached to the left and right units of the
headset. Change to the earbud that allows you to hear the least ambient sounds for both the left
and right units.
