In-ear medical devices for acoustic therapies in tinnitus treatments, state of the art

In this article, we review and analyze the different types of in-ear medical devices used in the most recently acoustic therapies in treatments against tinnitus, allowing us to identify the pros and cons. By our analysis, an optimal medical device could be characterized to enhance the application of acoustic therapies and in consequence the global results of the sound therapies that already exist. In this review, it was considered acoustic therapies, the technology implemented in medical devices and the clinical needs.