To prevent invasion of dust, water and the like into a case main body through cosmetic small holes in a portable telephone set in which a plurality of small holes leading sound to a microphone arranged in the case main body are disposed and the design effect can be improved.
The portable telephone set is provided with the case main body 2 where the first small holes 14A and 14B are formed, the microphone for call sound acquisition is positioned in parts of the first small holes 14A and 14B and is fixed inside the case main body 2, a cosmetic plate 15 is fixed on the outer side of the case main body 2 so that it includes the parts where the first small holes 14A and 14B are formed, second small holes 17a and 17b connected to the first small holes 14A and 14B are formed and the cosmetic small holes 17c to 17f are formed near the second small holes 17a and 17b, and a dark part 21 is arranged outside the case main body 2 so that it is confronted with parts where the cosmetic small holes 17c to 17f.
Takashi Watanabe
Masakazu Aoyama
Yasuhiko Murayama
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