Sony WI-XB400 Reference guide

Help Guide
Wireless Stereo Headset
WI-XB400
Use this manual if you encounter any problems, or have any questions.
Getting started
What you can do with the Bluetooth function
About the voice guidance
Supplied accessories
Checking the package contents
Replacing the earbuds
When you have finished using the headset
Parts and controls
Location and function of parts
About the indicator
Power/Charging
Charging the headset
Available operating time
1

Checking the remaining battery charge
Turning on the headset
Turning off the headset
Making connections
How to make a wireless connection to Bluetooth devices
Android smartphone
Pairing and connecting with an Android smartphone
Connecting to a paired Android smartphone
iPhone (iOS devices)
Pairing and connecting with an iPhone
Connecting to a paired iPhone
Computers
Pairing and connecting with a computer (Windows 10)
Pairing and connecting with a computer (Windows 8.1)
Pairing and connecting with a computer (Windows 7)
Pairing and connecting with a computer (Mac)
Connecting to a paired computer (Windows 10)
Connecting to a paired computer (Windows 8.1)
Connecting to a paired computer (Windows 7)
Connecting to a paired computer (Mac)
Other Bluetooth devices
Pairing and connecting with other Bluetooth devices
Connecting to a paired Bluetooth device
Multipoint connection
Connecting the headset to both a music player and a smartphone / mobile phone (multipoint connection)
Connecting the headset to 2 Android smartphones (multipoint connection)
Connecting the headset to an Android smartphone and an iPhone (multipoint connection)
Disconnecting Bluetooth connection (after use)
Listening to music
2

Listening to music via a Bluetooth connection
Listening to music from a device via Bluetooth connection
Controlling the audio device (Bluetooth connection)
Disconnecting Bluetooth connection (after use)
Supported codecs
Making phone calls
Receiving a call
Making a call
Functions for a phone call
Disconnecting Bluetooth connection (after use)
Using the voice assist function
Using the voice assist function (Google app)
Using the voice assist function (Siri)
Important information
Precautions
Trademarks
Customer support websites
Troubleshooting
What can I do to solve a problem?
Power/Charging
Unable to turn on the headset.
Charging cannot be done.
Charging time is too long.
The headset cannot be charged even if connecting the headset to a computer.
The remaining battery charge of the headset is not displayed on the screen of smartphone.
Sound
No sound
Low sound level
Low sound quality
3

5-004-986-11(1) Copyright 2019 Sony Corporation
Sound skips frequently.
Bluetooth
Pairing cannot be done.
Unable to make a Bluetooth connection.
Distorted sound
The Bluetooth wireless communication range is short, or the sound skips.
The headset does not operate properly.
Cannot hear a person on a call.
Low voice from callers
Resetting or initializing the headset
Resetting the headset
Initializing the headset to restore factory settings
4

Help Guide
Wireless Stereo Headset
WI-XB400
What you can do with the Bluetooth function
The headset uses BLUETOOTH® wireless technology, allowing you to do the following.
Listening to music
You can receive audio signals from a smartphone or music player to enjoy music wirelessly.
Talking on the phone
You can make and receive calls hands-free, while leaving your smartphone or mobile phone in your bag or pocket.
5-004-986-11(1) Copyright 2019 Sony Corporation
5

Help Guide
Wireless Stereo Headset
WI-XB400
About the voice guidance
You will hear the voice guidance in the following situations via the headset.
When the headset is turned on: “Power on”
When the headset is turned off: “Power off”
When entering pairing mode: “Bluetooth pairing”
When establishing a Bluetooth connection: “Bluetooth connected”
When disconnecting a Bluetooth connection: “Bluetooth disconnected”
When informing the remaining battery charge: “Battery about XX %” (The “XX” value indicates the approximate
remaining charge. Use it as a rough estimate.) / “Battery fully charged”
When the remaining battery charge is low: “Low battery, please recharge headset”
When automatically turning off due to low battery: “Please recharge headset. Power off”
5-004-986-11(1) Copyright 2019 Sony Corporation
6

Help Guide
Wireless Stereo Headset
WI-XB400
Checking the package contents
After opening the package, check that all of the items in the list are included. If any items are missing, contact your
dealer.
Numbers in ( ) indicate the item amount.
Wireless Stereo Headset
USB Type-C™ cable (USB-A to USB-C™) (approx. 20 cm (7.88 in.)) (1)
Hybrid silicone rubber earbuds (S/M/L 2 each)
M-sized earbuds come attached to the headset.
S size: 2 lines
M size: 3 lines
L size: 4 lines
5-004-986-11(1) Copyright 2019 Sony Corporation
7

Help Guide
Wireless Stereo Headset
WI-XB400
Replacing the earbuds
M-sized hybrid silicone rubber earbuds come attached to the headset. If the earbuds tend to come off or you feel that
there is insufficient low frequency sound and a difference in volume between the left and right units, change the earbuds
to another size to comfortably and snugly fit your left and right ears.
Hybrid silicone rubber earbuds
S size: 2 lines
M size: 3 lines
L size: 4 lines
5-004-986-11(1) Copyright 2019 Sony Corporation
Remove the earbuds.
Do not pinch the end of the earbud when removing it.
1
Attach the earbuds.
Firmly insert the earbuds all the way. Do not attach the earbuds in a loose or skewed manner.
2
8

Help Guide
Wireless Stereo Headset
WI-XB400
When you have finished using the headset
The headset has a built-in magnet for joining the left and right units. The magnet prevents the units from getting tangled
up when you leave the neckband worn after use.
5-004-986-11(1) Copyright 2019 Sony Corporation
9

Help Guide
Wireless Stereo Headset
WI-XB400
Location and function of parts
Earbuds1.
Right unit
Clasp the left and right units with the built-in magnet.
2.
Built-in rechargeable battery3.
Left unit
Clasp the left and right units with the built-in magnet.
4.
Tactile dot
There is a tactile dot on the left unit.
5.
Indicator (blue/red)
Lights up in red while charging.
Lights up in red or blue to indicate the power or communication status of the headset.
6.
Microphone
Picks up the sound of your voice when talking on the phone.
7.
Built-in antenna
A Bluetooth antenna is built into the headset.
8.
+ (volume +)/ (next) button9.
(play/call)/ (power) button
Use to play music, make a call, or turn the headset on/off.
10.
USB Type-C port
Connect the headset to an AC outlet via a commercially available USB AC adaptor or to a computer with the supplied
USB Type-C cable to charge the headset.
11.
10

Related Topic
About the indicator
Checking the remaining battery charge
5-004-986-11(1) Copyright 2019 Sony Corporation
- (volume -)/ (previous) button12.
11

Help Guide
Wireless Stereo Headset
WI-XB400
About the indicator
You can check various statuses of the headset by the indicator.
: Turns on in blue / : Turns on in red / -: Turns off
Turning on
- (flashes twice in blue)
In this case, when the remaining battery charge is 20% or lower (requires charging), the indicator lights successively as
follows.
- - (repeatedly flashes slowly in red for about 15 seconds)
For details, see “Checking the remaining battery charge”.
Turning off
(lights up in blue for about 2 seconds)
When the remaining battery charge becomes low
- - (repeatedly flashes slowly in red for about 15 seconds)
Charging
While charging
(lights up in red)
The indicator turns off after charging is complete.
Abnormal temperature
- - - - (repeatedly flashes twice in red)
Abnormal charging
- - - - (repeatedly flashes slowly in red)
Bluetooth function
Device registration (pairing) mode
- - - - (repeatedly flashes twice in blue)
Not connected
- - - - - - - - (repeatedly flashes in blue at about 1-second intervals)
Connection process completed
(repeatedly flashes quickly in blue for about 5 seconds)
Connected
- - - - - - - - - - - - (repeatedly flashes in blue at about 5-second intervals)
Incoming call
(repeatedly flashes quickly in blue)
The not connected and connected status indications automatically turn off after a period of time has passed. They start
flashing again for a period of time when some operation is performed. When the remaining battery charge becomes low,
the indicator (red) starts flashing.
Other
Initialization completed
(flashes 4 times in blue)
For details, see “Initializing the headset to restore factory settings”.
12

5-004-986-11(1) Copyright 2019 Sony Corporation
13

Help Guide
Wireless Stereo Headset
WI-XB400
Charging the headset
The headset contains a built-in lithium-ion rechargeable battery. Use the supplied USB Type-C cable to charge the
headset before use.
System requirements for battery charge using USB
Open the USB Type-C port cover.
1
Connect the headset to an AC outlet.
Use the supplied USB Type-C cable and a commercially available USB AC adaptor.
The indicator (red) of the headset lights up.
Charging is completed in about 3 hours (*) and the indicator (red) turns off automatically.
After charging is complete, disconnect the USB Type-C cable and close the USB Type-C port cover securely to
prevent water or dust from entering the headset.
2
Time required for charging the empty battery to its full capacity. The charging time may differ depending on the conditions of use.
*
14

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 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.
Ambient temperature exceeds the charging temperature range of 5 °C - 35 °C (41 °F - 95 °F).
There 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.
5-004-986-11(1) Copyright 2019 Sony Corporation
15

Help Guide
Wireless Stereo Headset
WI-XB400
Available operating time
The available operating times of the headset with the battery fully charged are as follows:
Bluetooth connection
Music playback time (AAC): Max. 15 hours
Music playback time (SBC): Max. 14 hours
About 60 minutes of music playback is possible after 10 minutes charging.
Communication time: Max. 15 hours
Standby time: Max. 200 hours
Note
Usage hours may be different depending on the conditions of use.
Related Topic
Supported codecs
5-004-986-11(1) Copyright 2019 Sony Corporation
16

Help Guide
Wireless Stereo Headset
WI-XB400
Checking the remaining battery charge
You can check the remaining battery charge of the rechargeable battery.
When you turn on the headset, the voice guidance indicating the remaining battery charge can be heard.
“Battery about XX %” (The “XX” value indicates the approximate remaining charge.)
“Battery fully charged”
The remaining battery charge indicated by the voice guidance may differ from the actual remaining charge in some
cases. Please use it as a rough estimate.
In addition, the indicator (red) flashes for about 15 seconds if the remaining battery charge is 20% or lower when the
headset is turned on.
When the remaining charge becomes low
The currently operating indicator display changes to red. If you hear the voice guidance say, “Low battery, please
recharge headset”, charge the headset as soon as possible.
When the battery becomes completely empty, the headset sounds a warning beep, the voice guidance says, “Please
recharge headset. Power off”, and the headset automatically turns off.
When you are using iPhone or iPod touch
When the headset is connected to an iPhone or iPod touch over an HFP Bluetooth connection, it will show an icon that
indicates the remaining battery charge of the headset on the screen of the iPhone or iPod touch.
A: Remaining battery charge of the headset
B: 100% - 70%
C: 70% - 50%
D: 50% - 20%
E: 20% or lower (requires charging)
The remaining battery charge of the headset is also displayed on the widget of an iPhone or iPod touch running iOS 9 or
later. For more details, refer to the operating instructions supplied with the iPhone or iPod touch.
The remaining charge which is displayed may differ from the actual remaining charge in some cases. Please use it as a
rough estimate.
When you are using an Android smartphone (OS 8.1 or later)
When the headset is connected to an Android smartphone via HFP Bluetooth connection, select [Settings] - [Device
connection] - [Bluetooth] to display the remaining battery charge of the headset where the paired Bluetooth device is
displayed on the smartphone’s screen. It is displayed as “100%”, “70%”, “50%”, or “20%”. For details, refer to the
operating instructions of the Android smartphone.
The remaining charge which is displayed may differ from the actual remaining charge in some cases. Please use it as a
rough estimate.
Note
If you connect the headset to an iPhone, iPod touch, or Android smartphone with “Media audio” (A2DP) only in a multipoint
connection, the remaining battery charge will not be displayed correctly.
17

The remaining battery charge may not be properly displayed if the headset has not been used for a long time. In this case,
repeatedly charge and discharge the battery multiple times to properly display the remaining battery charge.
5-004-986-11(1) Copyright 2019 Sony Corporation
18

Help Guide
Wireless Stereo Headset
WI-XB400
Turning on the headset
Related Topic
Turning off the headset
5-004-986-11(1) Copyright 2019 Sony Corporation
Press and hold the (power) button for about 2 seconds until the indicator (blue) flashes.
1
19

Help Guide
Wireless Stereo Headset
WI-XB400
Turning off the headset
Related Topic
Turning on the headset
5-004-986-11(1) Copyright 2019 Sony Corporation
Press and hold the (power) button for about 2 seconds until the indicator (blue) turns off.
1
20