I just got the H600. The audio output works fine, however I can't get the mic to work. When I check the sound settings, "Microphone H600[Wireless Headset]" is listed as the source. The input level shows no activity. I've tried muting/unmuting with the button on the mic. (Which beep indicates mute is on, the rising beep or falling beep?)

Also, when in Audacity which input source should I pick? There are so many choices. None seem to work.