OBJECTIVE: To evaluate the satisfaction and benefits obtained by hearing aid users of the Hearing Unified Health System services in the metropolitan region of Rio Grande do Sul. CASE REPORT: Adequate hearing is essential in day-to-day life and plays an important role in the development of human communication; however, the percentage of people with hearing loss of varying degrees increases each year. Given this demand, the National Policy on Health Care Hearing was created in order to promote comprehensive coverage in the care of patients with hearing impairment in Brazil, and such patients benefit from hearing aids. The research will consist of a questionnaire aiming to determine the benefits obtained by users of hearing aids from the National Health System and/or their guardians, with 9 closed questions regarding personal satisfaction with the hearing aids and the services of the Hearing Unified Health System. The questionnaire will be administered in the reference hospitals of the metropolitan region in RS. This research is scheduled to begin in early June. CONCLUSION: The results of this study are expected to explain the degree of satisfaction of users of the Hearing Unified Health System services in the metropolitan region of Rio Grande do Sul on criteria such as waiting time, the hearing aids, the structure of the site, and the care provided by the staff. This research will be conducted in order to enable the improvement and qualification of the service and to ensure optimization of the service and benefit to a greater number of individuals.