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From
<a href="http://revach.net/article.php?id=5003" eudora="autourl">
http://revach.net/article.php?id=5003</a><br><br>
Please note that I am simply quoting what this web site says, The
English is not mine! YL<br><br>
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<font size=3>Most poskim hold that by hearing the Megila through an
electronic device like microphone, telephone, or hearing aid one is not
Yotzei Krias Megila. The reason is you are not hearing the voice of the
Baal Korei but rather sounds created by a machine mimicking the sounds of
the Baal Korei.<br><br>
The Minchas Elazar held that you are Yotzei this way. He reason that even
when you hear it directly from the Baal Korei you are not hearing his
words but waves flying through the air, and it there is even a slight
delay from when the words are spoken until you hear them. The only
difference with a microphone is that the machine takes these waves and
amplifies it. Rav Moshe Feinstein (Igros Moshe OC 2:108) gives credence
to these arguments but says he is not clear exactly how it works.
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The Tzitz Eliezer also says we should not scorn those who are Meikil
B'Shaas Hadchak. Rav Vosner (Shevet HaLevi 5:84) says that he agrees with
Rav Moshe that technically it may be mutar although they both agree that
it should not be done even if the microphone will allow many more people
to hear it together BiRov Am. Rav Vosner goes as far as to say that if
you heard it through a microphone you must hear it again but without a
bracha.<br>
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