Yes, the Sony WH-1000XM4 supports connection to two Bluetooth devices simultaneously, which is known as multipoint connection. This makes it possible to switch back and forth between two devices without the need for re-pairing.

Hi Andrej0791,

yes, the headphones can be connected to 2 devices simultaneously through the multipoint connection function.
If [Connect to 2 devices simultaneously] is switched on with the "Sony | Headphones Connect" app, the headset can be connected to 2 devices simultaneously via Bluetooth.
You will have the following options:
-Switch music playback between 2 devices.
You can switch music playback from one device to the other without having to establish a new Bluetooth connection.
-Waiting for an incoming call on 2 smartphones.
You can listen to the music playing on one smartphone via the headset, wait for a call on both smartphones and answer the call when it comes in.
You can find more information on our support page.

Sony Europe