Megaphones; Audio amplifiers; Batteries for use in hearing aids; Bone conduction earphones; Digital voice signal processors; Ear plugs for divers; Noise cancelling headphones; Personal headphones for use with sound transmitting systems; Sound amplifiers; Wireless ear buds

Assistive listening device for the hearing impaired; Catheters and parts and fittings therefor; Digital hearing aids; Ear plugs for medical purposes; Electrically operated hearing aids; Hearing aids; Hearing aids for the deaf; Medical hearing instruments and parts of such devices; Surgical and medical apparatus and instruments for use in general surgery; Wireless transmitters and receivers for use with hearing aids