A voice prosthesis is a medical device designed to help individuals who have lost their natural voice, often due to conditions like laryngeal cancer. It is typically inserted into the throat, allowing air from the lungs to create sound when the person speaks. This device helps restore a more natural-sounding voice, improving communication and quality of life. The prosthesis works by redirecting airflow through a small valve, which vibrates to produce sound. Patients usually receive training from a speech-language pathologist to learn how to use the device effectively. This technology is an important part of rehabilitation for those affected by voice loss.