Earphone, circumaural

Earphone, circumaural devices are designed to be worn around the ear, fully enclosing the external ear within a cushioned cavity. They transmit audio signals from an external source to improve hearing or enable private listening, commonly used in clinical, diagnostic, or assistive listening settings.

These devices are regulated as electroacoustic aids and are typically supplied as non-invasive, patient-worn accessories. Their classification and regulatory pathway depend on intended use and jurisdiction, but they are not implanted, do not contain medication, and are not intended for therapeutic treatment of hearing loss unless specifically indicated as such.