Assistive listening device for the hearing impaired; Baby bottle nipples; Digital hearing aids; Ear picks; Ear plugs for noise reduction; Ear plugs for soundproofing, other than for medical use; Ear plugs for sleeping, swimming; Ear trumpets; Electric hearing aids; Electrically-operated hearing aids; Hearing aids; Hearing aids for the deaf; Hearing protectors without the ability to reproduce or transmit sound; Medical hearing instruments and parts of such devices; Nipples for baby bottles