RE: Sony MDR-xb950 Bluetooth Headphones connection issue
You can take a look at the connected devices options where it shows all the connected devices. If it is connected with through Bluetooth, it will show up as a connected device. When you mentioned that you checked under audio devices, did you check the playback devices. You can get to that option by right-clicking on the audio tray icon in the notifications tray. If you see the headphones listed there, you can select it as the default playback device.