Broadcast Action: Wired Headset plugged in or unplugged. Same as Android.Media.AudioManager.ActionHeadsetPlug, to be consulted for value and documentation.
If the minimum SDK version of your application is NoType:android/os/Build$VERSION_CODES;Href=../../../reference/android/os/Build.VERSION_CODES.html#LOLLIPOP, it is recommended to refer to the AudioManager constant in your receiver registration code instead.