Equipment and apparatus for processing of sound; equipment and apparatus for filtering sound and soundproofing; sound-filters; sound transmitting apparatus; headsets; earphones; sound bars; loudspeakers; equipment and apparatus for amplifying sound; noise filtering, noise reduction, noise suppression and noise cancellation devices; portable sound filtering, sound amplifying devices, as well as software related to these apparatus, devices and equipment
Electrical and Scientific ApparatusHearing aids, ear plugs, and other medical instruments for use in relation to hearing
Medical Apparatus