A lavalier microphone, often called a lapel mic, is a small, clip-on microphone used primarily in interviews, presentations, and film production. Its compact size allows it to be discreetly attached to clothing, making it ideal for capturing clear audio without being obtrusive. These microphones are typically omnidirectional, meaning they can pick up sound from all directions, which helps capture the speaker's voice even in noisy environments. Lavalier microphones can be wired or wireless, providing flexibility in how they are used, and are commonly employed by journalists, actors, and public speakers.