A lavalier microphone, often called a lapel mic, is a small, clip-on microphone used for hands-free audio recording. It is commonly used in interviews, presentations, and film production, allowing the speaker to move freely while capturing clear sound. The microphone is typically attached to the speaker's clothing, close to the mouth, ensuring optimal audio quality. These microphones can be wired or wireless, with wireless models providing greater mobility. Lavalier microphones are popular in broadcasting and theater, as they are discreet and can be easily hidden under clothing. They are an essential tool for professionals in the fields of film, television, and public speaking.