The konftel 300 extra microphones are designed exclusively for use on the konftel 300 conference system supplied in the pack are two microphones which simply plug directly into the konftel 300 conference system and are then ready to use these microphones are used to significantly increase the coverage of the conference system from 30msup2 to 70msup2designed to compliment the modern looks of the konftel 300 conference system the extra microphones sit discreetly on top of the desk once co