Hi,

If you are using Bluetooth headphones that support Bluetooth A2DP, the sound will automatically come from the connected Bluetooth headphones.
For models with Bluetooth A2DP that support Bluetooth audio devices, [A/V Sync] is set under [Settings] - [Display and Sound] - [Audio Output].
Only for models with Bluetooth A2DP support that can use Bluetooth audio devices such as headphones or speakers.
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)
You can find more information on our support page.

Sony Europe

Hi,

If you are using Bluetooth headphones that support Bluetooth A2DP, the sound will automatically come from the connected Bluetooth headphones.
For models with Bluetooth A2DP that support Bluetooth audio devices, [A/V Sync] is set under [Settings]
- [Display and sound] - [Audio output].
Only for models with Bluetooth A2DP support that can use Bluetooth audio devices such as headphones or speakers.
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)
You can find more information on our support page.

Sony Europe

Ok, thanks for the answer. Then I'll take the headphone model out of the question:
Is it possible to switch off the speakers after connecting Bluetooth headphones?

Can't make a statement about Teufel Airy APTX BT headphones...