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
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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
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