content: tell application "System Preferences"
  	reveal anchor "output" of pane id "com.apple.preference.sound"
  	activate
  	
  	tell application "System Events"
  		tell process "System Preferences"
  			select (row 1 of table 1 of scroll area 1 of tab group 1 of window "Sound" whose value of text field 1 is "Headphones")
  		end tell
  	end tell
  	
  	quit
  end tell
  