NEN EN IEC 61842 : 2002
Current
Current
The latest, up-to-date edition.
MICROPHONES AND EARPHONES FOR SPEECH COMMUNICATIONS
Published date
12-01-2013
Publisher
Pertains to the microphone part and earphone part of handsets, headsets or earsets for speech communications, and also to the microphone units and earphone units of built-in handsets, headsets or earsets.
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