Sony WH-CH720N Help Manual page 90

If you do not see [Finish headphones setup] on the Conversation View of Google Assistant app, delete the pairing information for
the headset from the Bluetooth settings of your smartphone and redo the pairing process.
Note
If the function when you press and hold the
from the headset.
If the function when you press and hold the
app, Siri) cannot be operated from the headset.
Google Assistant is not available in certain languages, countries and region.
The function to operate the headset with Google Assistant depends on the specifications of Google Assistant.
The specifications of Google Assistant are subject to change without notice.
For details on the services provided by other companies such as Google Assistant or Amazon Alexa, consult each service
provider directly.
Sony shall assume no responsibility for any problems such as misunderstandings related to the services provided by other
companies.
(play/call) button is set to [Google Assistant], Amazon Alexa cannot be operated
(play/call) button is set to [Google Assistant], the voice assist function (Google
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