发明名称 Air conduction hearing device
摘要 A two-piece hearing aid with a soft flexible snap-on covering with a plurality of folding sections which contribute to the proper fit, comfort, ease of maintenance and prevention of earwax build-up interference. The end of the snap-on insert has a thin sound permeable membrane which does not allow earwax into the hearing aid. In addition, a directional windramp redirects wind away from the microphone opening to greatly reduce ambient wind noise.
申请公布号 US5748743(A) 申请公布日期 1998.05.05
申请号 US19950386518 申请日期 1995.02.06
申请人 EAR CRAFT TECHNOLOGIES 发明人 WEEKS, ERIC L.
分类号 H04R25/00;(IPC1-7):H04R25/00 主分类号 H04R25/00
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