IEC 60764:1983 ed1.0

Заменен

Sound transmission using infra-red radiation. — 7 стр.

Applies to headphones with integrated infra-red detectors for use with television and stereo equipment.

Заменен на

IEC 61603-1:1997 ed1.0

ICS

33.160.50 Auxiliaries. Including headphones, loudspeakers, microphones, etc. / Вспомогательные устройства. Включая наушники, громкоговорители, микрофоны и т.д.