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100 yen Amplifier
While working, I frequently make a telephone call to join a telephone conference.
My office, however, is very noisy -- typical Japanese office. When I am the only attandant from Japan
I use my company PHS (cellular) at my desk but its audio receprion volume is too weak
to cope with my loud office neighbors.
One day I found a small, battery powered audio amplifier at one of the 100yen shops.
It will be useful, if I use this 100 yen amplifier to boost the audio of my PHS.
So next I went to an electronics shop and bought a fairly large headset with mike boom,
started to modify the 100 yen amplifier to interconnect both of them.
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