Lavaliere microphones can
be classified into two categories:
Omni-directional - picks sound fairly well
from all sides
Uni-directional - picks sound from a very
narrow area! It has a similar pattern to that of a shotgun or hyper cardioid.
It must be aimed at the person’s mouth.
They mostly use by news presenters.
A wireless system consists of a single transmiter and a
single receiver.The most modern ones use a UHF (ultra high frequency)
band which is considered more effective and less crowded than VHF (very high frequency) band.
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