发明名称 Headphone Adaptation and Positioning Device
摘要 An adaptation device that removably attaches to earbud style headphone/s and provides improved security and retention of the earbud to a wearer's ear yet positions the speaker in substantially the same distance relative to the concha and/or ear canal of a wearer as a wearer would ordinarily wear an earbud.
申请公布号 US2008310666(A1) 申请公布日期 2008.12.18
申请号 US20080133435 申请日期 2008.06.05
申请人 WENGREEN ERIC JOHN 发明人 WENGREEN ERIC JOHN
分类号 H04R1/10 主分类号 H04R1/10
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