| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cellular phone with a hearing aid function for amplifying a sound level of peripheral sounds inputted from a microphone of the cellular phone. Ž<P>SOLUTION: The cellular phone includes an amplifier capable of highly amplifying sounds inputted form the microphone of the cellular phone so that a user who is hard of hearing can hear peripheral sounds when the user uses an earphone. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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