audio visual equipment | audio conferencing

The basic parts of audio conferencing are ....mic , speakers , audio mixer , amplifier & wireless audio systems( receiver ).

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1> MIC
There are many types of mics ........... !First of all we have to know little bit about how mic works or the basic mechanism of mics.
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Ok know we see the types of mics ...

1>wireless mics .___________________________________________________________________
2>wireless color mic.
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3>wireless table mic.