Simple mixer control 'PCM',0
  Capabilities: pvolume pswitch pswitch-joined
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 175
  Mono:
  Front Left: Playback 54 [31%] [-45.38dB] [on]
  Front Right: Playback 54 [31%] [-45.38dB] [on]
Simple mixer control 'Mic',0
  Capabilities: cvolume cswitch cswitch-joined
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 127
  Front Left: Capture 61 [48%] [5.25dB] [on]
  Front Right: Capture 61 [48%] [5.25dB] [on]
Simple mixer control 'Extension Unit',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
Simple mixer control 'Loudness',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]