Cochlear implants are electronic devices that provide a sense of sound to individuals with severe hearing loss or deafness. Unlike hearing aids, which amplify sound, cochlear implants bypass damaged portions of the ear and directly stimulate the auditory nerve, allowing the brain to perceive sound. The device consists of two main parts: an external processor worn behind the ear and an internal implant surgically placed under the skin. Cochlear implants can significantly improve the quality of life for many users, enabling them to engage in conversations and enjoy sounds in their environment.