Assistive Listening Devices (ALD) are devices used in addition to hearing aids (HAs) and cochlear implants to make more sounds accessible to people with hearing impairment. According to the World Health Organization (WHO) over 5% of the world’s population – 360 million people of which 32 million are children – suffer from disabling hearing impairment. Hearing aids are currently used by about 50 million people.
Further information: How modern wireless technology impacts the lives of hearing-impaired persons