Equipment and apparatus for processing of sound; equipment and apparatus for filtering sound; sound-filters; sound transmitting apparatus; headsets, namely, wireless headsets; earphones; sound bars; loudspeakers; equipment and apparatus for amplifying sound; noise filtering, noise reduction, noise suppression and noise cancellation devices, namely, headsets; 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; ear plugs for soundproofing; ear plugs for noise reduction
Medical Apparatus