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 that record or deliver information in audio or visual formats and products that combine any of those functions. Included are, e.g. audio and video equipment, televisions, sound transmission systems, products that process audio or visual information to enhance its quality and usefulness, such as filtering noises or converting analogue to digital information. Visual displays, see 22 39 04.