Products intended to support, train or replace a person's capacity to receive, send, produce and process information in different forms, including communicating by language, signs and symbols, receiving and producing messages, carrying on conversations and using communication devices and techniques. Included are, e.g. devices for seeing, hearing, reading, writing, telephoning, signalling and alarming, information technology. Assistive products for office administration, information storage and management at work, see 28 21.

Devices for assisting a person to communicate through speech. Microphones, see 22 18 33. Loudspeakers, see 22 18 36.

Products for training and developing the use of voice and speech, particularly in relation to the production and awareness of sounds. Included are, e.g. assistive products for training spoken language, S-, F- and Sch-indicators, acoustic spectral analyser.