Ear plugs for medical purposes; Ear plugs for noise reduction; Ear plugs for sleeping; Ear plugs for soundproofing; Ear plugs for soundproofing, other than for medical use; Ear plugs for swimming; Ear plugs for swimming purposes; Hearing aids; Hearing protectors without the ability to reproduce or transmit sound; Cooling pads for first aid purposes; Digital hearing aids; Medical hearing instruments and parts of such devices; Thermal packs for first aid purposes