Argumentum ad ignorantiam: Smartphone-connected listening devices

In this paper, we review the current literature assessing the application and benefits of “connected” hearing technologies, as well as their potential to improve accessibility to and affordability of hearing healthcare. Over the past decade, there has been a proliferation of hearing devices that that connect wirelessly to smartphone technologies via Bluetooth. These devices include: (1) smartphone-connected hearing aids that must be obtained from a licensed audiologist or hearing aid dispenser; (2) direct-to-consumer (DTC) devices, such as personal sound amplification products (PSAPs); and (3) smartphone-based hearing aid applications (or apps). Common to all these connected devices is that they permit the user to self-adjust and customise their device programmes via an accompanying smartphone app. There has been a growing body of literature assessing connected hearing devices in adults living with hearing loss. Overall, the evidence to date supports the notion that all connected hearing devices can improve accessibility to and affordability of amplification. It is unclear, however, whether connected technologies are a clinically effective alternative to traditional hearing aids. Even so, the impact of connectivity is especially pertinent given the sudden disruption caused by the recent global COVID-19 pandemic, whereby connected technologies enable patients to receive treatment through mobile-based, tele-audiology platforms. Learning Objectives After reading this article, the learner will be able to: • summarize the evidence assessing different connected hearing devices; • explain how connected hearing devices compare to traditional hearing aids; and • discuss whether connected hearing devices can improve accessibility to and affordability of hearing healthcare.