My husband has began using a Bluetooth microphone for use with Dragon. Frequently, when dictating, the quality becomes really bad and then when we check the microphone, his profile has switched to using the inbuilt laptop's soundcard as dication device. Maybe because the connection with the Bluetooth device was lost?

There does not seem to be a way to remove the inbuilt soundcard as a potential microphone for his profile. It seems to me that it should be possible to remove that soundcard as an option, so that Dragon will give a warning when it has lost contact with the Bluetooth microphone - and not just plod on with the wrong mike. 

Does anyone have a trick for this?

(we Created a new Profile, selecting the Bluetooth microphone as dictation Device. The inbuilt Soundcard was added automatically by Dragon.)