System for hearing protectors

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专利权人:

Joakim Birgersson

发明人:

Joakim Birgersson

申请号：

US12679504

公开号：

US08649525B2

申请日:

2008.09.24

申请国别(地区):

US

年份:

2014

代理人:

摘要：

A system for hearing protection comprising an outer hearing protection unit, an inner hearing protection unit, and an outer microphone is disclosed, the inner hearing protection unit comprising a speaker and the microphone being arranged to be electrically connectable for transmission of signals to the speaker.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/