| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce installation area of a microphone section, by removing a groove section (hole section) for tone drop-out required for installing the microphone section for calls. Ž<P>SOLUTION: The microphone section for calls is provided, while being made to approach an earphone terminal provided in a casing. A hole section 41 for microphones, which is provided in the casing corresponding to the microphone section, is spatially connected to a gap section 43, which is formed between the earphone terminal and the casing, by the groove section 42 for tone drop-out; a hole section 44 for sounding is provided between a lid section 40 of the earphone terminal and the casing; and the gap section 43 is spatially connected to the outside via the hole section 44 for sounding, thus using the gap section 43 formed between the earphone terminal and the casing also as the groove section (hole section) for tone drop-out of the microphone section 38. Accordingly, the installation area of the microphone section 38 is reduced, by removing the groove section (hole section) for tone drop-out of the microphone section 38. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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