| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem in an ultrasonic radiator device which has an ultrasonic radiator mounted to a tip of an arm extended from a casing of a headphone and can improve the sound quality of the headphone, but is required to further enhance its portability and fashionability by making the device small and light in size and weight when it is used for a portable audio player. SOLUTION: A plurality of head phone connectors are mechanically connected to a casing 3 having an ultrasonic radiator 2 built herein. The headphone connectors are electrically connected to the ultrasonic radiator in parallel with each other so that the ultrasonic radiator device 36 can be regarded as part of a head phone cable, thus solving the above problem. COPYRIGHT: (C)2011,JPO&INPIT
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