Sony MDR-1000X 사용자 매뉴얼

Note

If the headset tries to make a connection with a previously connected BLUETOOTH device, you may not be able to connect to the device you
want to. If connection fails, terminate the BLUETOOTH connection from the device that was previously connected.

Related Topic

How to make a wireless connection to BLUETOOTH devices
Pairing and connecting with other BLUETOOTH devices
Listening to music from a device connected via BLUETOOTH