The IRC-51 is the
"Chairman's" tabletop microphone used with
the Azden 6-channel IR wireless conference
system. This microphone is always on channel
#1. It features a push ON /push OFF "talk"
button as well as a "Mute" button that turns
all of the "Participant's" microphones OFF.
The IRC-51 can be powered by 6 "AA" Alkaline
batteries or by 6 of Azden's 1HR-3U
rechargeable NiMH batteries, which can be
charged while in the unit. In fact, the
microphone can be used while the batteries
are charging. Operating time on fresh
batteries is approximately 4-5 hours.