Feature description:
https://developer.android.com/reference/android/media/AudioDeviceInfo has some stuff that would be nice to be able to use in custom strings, whether for conditionals or just to display. I think https://developer.android.com/reference/android/media/AudioDeviceInfo#getProductName() and https://developer.android.com/reference/android/media/AudioDeviceInfo#getType() would be especially useful, but I could see some of the other get functions being useful for people
Problem solved:
Unable to create custom strings based on audio device info
Brought benefits:
More customization in custom strings
Other application solutions:
Additional description and context:
Screenshots / Mockup: