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.

Included are, e.g. display monitors, printers, plotters, synthesizers, output software. Office machines and office equipment, see 28 21 09.

Devices that display information from e.g. a computer audibly through speech or other sound. Included are, e.g. speech synthesizers. Loudspeakers, see 22 18 36. Headphones, earphones and headsets, see 22 18 38.