What defines an Over-the-Counter hearing aid?

An Over-the-Counter (OTC) hearing aid is defined as a wearable sound amplifying device specifically designed for individuals with mild to moderate hearing loss. The key characteristic of OTC hearing aids is their accessibility: they are available for purchase without the need for a prescription or a professional fitting, thus facilitating easier access for consumers who may struggle with hearing issues.

This option emphasizes the intended user group, which is crucial because OTC hearing aids cater to a broader audience by making hearing assistance more readily available. The classification recognizes the importance of providing support for those who do not require the advanced features or personalized adjustments that prescription hearing aids offer.

In contrast to the other options, an OTC hearing aid is not limited to just amplifying sounds without considering the hearing loss level, nor does it require a prescription for purchase. Furthermore, they are not exclusive to clinical settings; rather, they are designed for everyday use by individuals, allowing them to address their hearing loss conveniently in various environments.