how to sync Sony speakers Turn on the speaker by pressing the power button.
Put the speaker in pairing mode by pressing and holding the pairing
button until you hear a voice prompt and the Bluetooth indicator flashes quickly.

Search for available Bluetooth devices on the source device and select the Sony speaker from the list of available devices.
Complete the pairing process within five minutes.
Once the devices are connected, you can play music or other audio through the Sony speaker.
It is important to note that the Sony speaker can be paired with up to 8 Bluetooth
devices, but can only play music from one device at a time.
Additionally, when an audio cable is connected to the speaker’s
AUDIO IN jack, sound from the Bluetooth-connected device is not output from the speaker.
How many Sony speakers can you pair together?

However, most Sony speakers support wireless party chain, which
allows you to connect up to 100 compatible speakers wirelessly.
This feature makes it possible to create a surround sound-like
experience in your home or outdoor space. To connect
multiple Sony speakers, you’ll need to ensure that they are compatible and follow the manufacturer’s instructions for pairing them together.
How to pair Sony speakers together

model of the speakers. However, most Sony speakers support wireless party chain,
which allows you to connect up to 100 compatible speakers
together for an enhanced audio experience. To ensure that
you are pairing your Sony speakers correctly, it is recommended
that you follow the manufacturer’s instructions for pairing multiple
speakers together. This will ensure that the speakers are synced properly and functioning at their best.
How do I pair 2 Sony SRS XB13 speakers?

function on both speakers. Then, press and hold the Add button
on one of the speakers until it enters pairing mode. The speaker’s indicator
light will start flashing. Next, press and hold the Add button
on the other speaker until it also enters pairing mode.
The two speakers will connect automatically and you will
hear a sound from both speakers indicating that they are paired.