| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a headphone that includes a power generation function so as to allow a user to enjoy music over a long period of time even without having a large battery. Ž<P>SOLUTION: The headphone 100 includes two speakers 10 and a head band 20 that is curved according to a head shape while connecting the speakers to each other. The headphone also includes a wireless receiver for receiving music and sound signals, an amplifier for amplifying the music and the sound signals, a power source for driving the amplifier, and a power generator for supplying power to the power source. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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