Help Guide
Wireless Stereo Headset
WH-CH520
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Turning on the headset
Press and hold the
(power) button for about 2 seconds or more until the indicator (blue) flashes.
Go to Page Top
Getting started
What you can do with the
Bluetooth
function
About the voice guidance
Supplied accessories
Checking the package contents
Parts and controls
Location and function of parts
About the indicator
Wearing the headset
Power/Charging
Charging the headset
Available operating time
Checking the remaining battery charge
Turning on the headset
Turning off the headset
Making connections
How to make a wireless connection to
Bluetooth
devices
Easy setup with app
Connecting with the “
Sony | Headphones Connect
” app
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® 11
)
Pairing and connecting with a computer (
Windows 10
)
Pairing and connecting with a computer (
Mac
)
Connecting to a paired computer (
Windows 11
)
Connecting to a paired computer (
Windows 10
)
Connecting to a paired computer (
Mac
)
Other Bluetooth devices
Pairing and connecting with a
Bluetooth
device
Connecting to a paired
Bluetooth
device
Multipoint connection
Connecting the headset to 2 devices simultaneously (multipoint connection)
Listening to music
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)
About
360 Reality Audio
Sound quality mode
About the sound quality mode
Supported codecs
About the
DSEE
function
Making phone calls
Receiving a call
Making a call
Functions for a phone call
Making a video call on your computer
Disconnecting
Bluetooth
connection (after use)
Using the voice assist function
Using the voice assist function (
Google app
)
Using the voice assist function (
Siri
)
Using the apps
What you can do with the “
Sony | Headphones Connect
” app
Installing the “
Sony | Headphones Connect
” app
Accessing support information from the “
Sony | Headphones Connect
” app
How to keep the software up-to-date (for comfortable use of the headset)
Important information
Precautions
To prevent burning or malfunction due to getting wet
Licenses
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 available operating time is short (the duration of the battery is short).
Sound
No sound
Low sound level
Low sound quality
Sound skips frequently.
Bluetooth connection
Pairing cannot be done.
Unable to make a
Bluetooth
connection.
The headset cannot be operated.
Cannot hear the other person or the call volume is low during calls/The other person cannot hear you or their call volume is low during calls.
Resetting or initializing the headset
Resetting the headset
Initializing the headset to restore factory settings
Specifications
Specifications
(power) button for about 2 seconds or more until the indicator (blue) flashes. 
(power) button for about 2 seconds or more until the indicator (blue) flashes.
