发明名称 Earphone device
摘要 An earphone device includes a housing having a driver unit, and a sound guide tube mounted on a front surface of the housing to protrude from the front surface, in which the sound guide tube is disposed at a position deviated from a center position of the housing.
申请公布号 US2007189570(A1) 申请公布日期 2007.08.16
申请号 US20070651557 申请日期 2007.01.10
申请人 MATSUO TOMOHIRO;OHTA TAKASHI;NAGENO KOJI;ITO TOMOHIRO 发明人 MATSUO TOMOHIRO;OHTA TAKASHI;NAGENO KOJI;ITO TOMOHIRO
分类号 H04R25/00;A61B7/02 主分类号 H04R25/00
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