Sony NPA-MQZ1K Multi Battery Adapter Kit - Manual (Page 86)

Note
When a sound bar and the TV are connected through Bluetooth, connect the
external input device such as a Blu-ray/DVD recorder to the TV.
Related topics
Supported Bluetooth profiles
Operation cuts out, or a device does not work.
You want to output sound from the headphones/Bluetooth audio device and audio
system/TV speakers at the same time.
[64] Bluetooth devices | Bluetooth devices
Supported Bluetooth profiles
The TV supports the following profiles:
HID (Human Interface Device Profile)
HOGP (HID over GATT Profile)
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio/Video Remote Control Profile)
SPP (Serial Port Profile)
Related topics
Connecting a Bluetooth device
[65] Using the TV with Other Devices
Adjusting the AV sync setting
If a Bluetooth audio device is connected, there may be a delay between the picture and
sound due to the properties of Bluetooth. You can adjust the delay between the picture
and sound with the A/V sync setting.