🚀 go-pugleaf

  I'm working on an engineering design project to solve a problem of
interference with wireless microphones in lecture halls at my school.
I know that Radio Shack sells a device which uses a modulated infrared
beam to transmit from a stereo to a pair of headphones and was wondering
if anybody manufactures a similar device for wireless microphones.
 
  In other words, I'm looking for a wireless microphone which does not
use radio frequencies.
 
  Is such a device available? If so, who manufactures it and what price
does such a system go for?
 
  Any help will be appreciated.
 
  Please send any replies via mail to 9216817@SSCvax.CIS.McMaster.CA
instead of to the address at the header of this message.
 
                                         Thanks,
                                             David McKay.
 
                                  (9216817@SSCvax.CIS.McMaster.CA)