
– Increase the separation between the
equipment and receiver.
– Connect the equipment into an outlet on a
circuit different from that to which the
receiver is connected.
– Consult the dealer or an experienced radio/
TV technician for help.
This equipment must not be co-located or
operated in conjunction with any other
antenna or transmitter.
For the customer in Canada
This device contains licence-exempt
transmitter(s)/receiver(s) that comply with
Innovation, Science and Economic
Development Canada’s licence-exempt
RSS(s). Operation is subject to the following
two conditions:
(1) This device may not cause interference;
and
(2) This device must accept any interference,
including interference that may cause
undesired operation of the device.
High volume may affect your hearing.
Do not use the unit while walking, driving or
cycling. Doing so may cause traffic accidents.
Do not use at a dangerous place unless the
surrounding sound can be heard.
The unit is not waterproof. If water or foreign
objects enter the unit, it may result in fire or
electric shock. If water or a foreign object enters
the unit, stop use immediately and consult your
nearest Sony dealer. In particular, be careful in
the following cases.
– When using the unit around a sink, etc.
Be careful that the unit does not fall into a sink
or container filled with water.
– When using the unit in the rain or snow, or in
humid locations
– When using the unit while you are sweaty
If you touch the unit with wet hands, or put the
unit in the pocket of a damp article of clothing,
the unit may get wet.
For details on the effect of contact to the human
body from the mobile phone or other wireless
devices connected to the unit, refer to the
instruction manual of the wireless device.
Never insert the USB plug when the main unit or
charging cable is wet. If the USB plug is inserted
while the main unit or charging cable is wet, a
short circuit may occur due to the liquid (tap
water, seawater, soft drink, etc.) attached to the
main unit or charging cable or due to foreign
matter, and cause abnormal heat generation or
malfunction.
Note on static electricity
Static electricity accumulated in the body may
cause mild tingling in your ears. To reduce the
effect, wear clothes made from natural materials,
which suppress the generation of static
electricity.
IMPORTANT: THE FACTORY DEFAULT SETTING OF
THE VOICE GUIDANCE FOR THIS UNIT IS
ENGLISH.
The voice guidance can be heard from the unit
when:
ŞWhen powering on: “Power on”
ŞWhen powering off: “Power off”
ŞWhen the remaining battery level is low and
recharge is recommended: “Low battery, please
recharge headset”
ŞWhen automatically turning off due to low
battery: “Please recharge headset. Power off”
ŞWhen checking the remaining battery level by
pressing the POWER button while the unit
turns on: “Battery fully charged” / “Battery
about 70%” / “Battery about 50%” / “Battery
about 20%”
ŞWhen entering pairing mode: “Bluetooth
pairing”
ŞWhen establishing a Bluetooth connection:
“Bluetooth connected”
ŞWhen disconnecting a Bluetooth connection:
“Bluetooth disconnected”
ŞWhen turning on the noise canceling function:
“Noise canceling”
ŞWhen turning on the Ambient Sound Mode:
“Ambient sound”
ŞWhen turning off the noise canceling function
and the Ambient Sound Mode : “Ambient
sound control off”
ŞThe Google Assistant button was pressed, but
the Google Assistant was not available on the
smartphone connected to the headset:
“The Google Assistant is not connected”
ŞWhen Amazon Alexa is not available on the
smartphone connected to the headset even if
you press the Amazon Alexa button on the
headset: “Either your mobile device isn’t
connected; or you need to open the Alexa App
and try again”
Precautions
On BLUETOOTH® communications
ŞBluetooth wireless technology operates within
a range of about 10 m (30 feet). The maximum
communication distance may vary depending
on the presence of obstacles (people, metal
objects, walls, etc.) or the electromagnetic
environment.
ŞBluetooth communications may not be
possible, or noise or audio dropout may occur
under the following conditions:
– When there is a person between the unit and
the Bluetooth device. This situation may be
improved by positioning the Bluetooth device
so that it faces the antenna of the unit.
– When there is an obstacle, such as a metal
object or a wall, between the unit and the
Bluetooth device.
– When a Wi-Fi device or microwave oven is in
use, or microwaves are emitted near the unit.
– Compared to use indoors, use outdoors is
subjected little to signal reflection from walls,
floors, and ceilings, which results in audio
dropout occurring more frequently than use
indoors.
– The antenna is built into the unit as indicated
by the dotted line in the illustration below.
The sensitivity of the Bluetooth
communications can be improved by
removing any obstacles between the
connected Bluetooth device and the antenna
of this unit.
ŞBluetooth and Wi-Fi (IEEE802.11b/g/n) devices
use the same frequency (2.4 GHz). When using
the unit near a Wi-Fi device, electromagnetic
interference may occur, resulting in noise,
audio dropout, or the inability to connect. If this
happens, try performing the following
remedies:
– Establish a connection between the unit and
the Bluetooth device when they are at least
10 m (30 feet) away from the Wi-Fi device.
– Turn off the Wi-Fi device when using the unit
within 10 m (30 feet) of the Wi-Fi device.
– Position the unit and the Bluetooth device as
near as possible to each other.
ŞMicrowaves emitting from a Bluetooth device
may affect the operation of electronic medical
devices. Turn off this unit and other Bluetooth
devices in the following locations, as it may
cause an accident:
– in hospitals, near priority seating in trains,
locations where inflammable gas is present,
near automatic doors, or near fire alarms.
ŞThe audio playback on this unit may be
delayed from that on the transmitting device,
due to the characteristics of Bluetooth wireless
technology. As a result, the sound may not be
in sync with the image when viewing movies or
playing games.
ŞThis product emits radio waves when used in
wireless mode.
When used in wireless mode on an airplane,
follow flight crew directions regarding
permissible use of products in wireless mode.
ŞThe unit supports security functions that
comply with the Bluetooth standard as a
means of ensuring security during
communication using Bluetooth wireless
technology. However, depending on the
configured settings and other factors, this
security may not be sufficient. Be careful when
communicating using Bluetooth wireless
technology.
ŞSony shall assume no responsibility for any
damages or loss resulting from information
leaks that occur when using Bluetooth
communications.
ŞConnection with all Bluetooth devices cannot
be guaranteed.
– Bluetooth devices connected with the unit
must comply with the Bluetooth standard
prescribed by Bluetooth SIG, Inc., and must
be certified as compliant.
– Even when a connected device complies with
the Bluetooth standard, there may be cases
where the characteristics or specifications of
the Bluetooth device make it unable to
connect, or result in different control
methods, display, or operation.
– When using the unit to perform hands-free
talking on the phone, noise may occur
depending on the connected device or the
communication environment.
ŞDepending on the device to be connected, it
may require some time to start
communications.
If sound skips frequently during playback
ŞThe situation may be improved by setting the
sound quality mode to “priority on stable
connection.” For details, refer to the Help Guide.
ŞThe situation may be improved by changing
the wireless playback quality settings or fixing
the wireless playback mode to SBC on the
transmitting device. For details, refer to the
operating instructions supplied with the
transmitting device.
ŞWhen listening to music from a smartphone,
the situation may be improved by closing
unnecessary apps or restarting the
smartphone.
On the use of calling apps for smartphones
and computers
ŞThis unit supports normal incoming calls only.
Calling apps for smartphones and computers
are not supported.
On charging the unit
ŞThis unit can be charged using USB only. A
computer with a USB port or a USB AC adaptor
is required for charging.
ŞBe sure to use the supplied USB Type-C cable.
ŞWhen charging, the unit cannot be turned on
and the Bluetooth and noise canceling
functions cannot be used.
ŞIf the unit is not used for a long time, the
rechargeable battery may become depleted
quickly. The battery will be able to hold a
proper charge after it is discharged and
recharged several times. When storing the unit
for a long time, charge the battery once every
six months to prevent over-discharge.
ŞIf the rechargeable battery becomes depleted
extremely quickly, it should be replaced with a
new one. Please contact your nearest Sony
dealer for a battery replacement.
If the unit does not operate properly
ŞFollow the procedure below to reset the unit.
Press the Æand CUSTOM buttons
simultaneously while the unit is charging. The
unit is reset. When the unit is reset, the pairing
information in the unit is not deleted.
CUSTOM
Æ
ŞIf the problem persists even after the unit is
reset, perform the procedure below to initialize
the unit.
Disconnect the USB Type-C cable and turn off
the unit. Press and hold the Æand CUSTOM
buttons simultaneously for at least 7 seconds.
The indicator (blue) flashes 4 times, the unit is
initialized, and the unit is reset to the factory
settings. When the unit is initialized, all pairing
information is deleted.
ŞAfter the unit is initialized, it may not connect
to your iPhone or computer. If this happens,
delete the pairing information of the unit from
the iPhone or computer, and then pair them
again.
On the noise canceling function
ŞThe noise canceling function senses external
ambient noise (such as the noise inside a
vehicle or the sound of air conditioning inside a
room) with built-in microphones, and produces
an equal-but-opposite sound that cancels out
the ambient noise.
– The noise canceling effect may not be
pronounced in a very quiet environment, or
some noise may be heard.
– The noise canceling function works for noise
in the low frequency band primarily. Although
noise is reduced, it is not canceled
completely.
– When you use the unit in a train or a car,
noise may occur depending on street
conditions.
– Mobile phones may cause interference and
noise. Should this occur, locate the unit
further away from the mobile phone.
– Depending on how you wear the unit, the
noise canceling effect may vary or a beeping
sound (howling) may occur. If this happens,
take off the unit and put it back on again.