Microphones and earphones for speech communications Ingestion-build-47786 0) to 3/4 in (1

0) to 3/4 in (1

Who is this BS 8233 - Guidance on sound insulation and noise reduction for buildings for

ADSS cables and other constructions intended for high-voltage applications are not covered by BS EN 60794-3-20

Marking and other information

Microphones and earphones for speech communications Ingestion-build-47786 0) to 3/4 in (11 Scope This standard applies 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. The object of this standard is to establish definitions relating to these electroacoustic transducers, and to standardize the characteristics to be specified and the relevant methods of measurement. This does not exclude the use