A lapel microphone is a small, inconspicuous microphone that is attached to the speaker's clothing, most often on the lapel of a jacket, shirt or tie, using a clip. Its main purpose is to capture the spoken word of one person clearly and in high quality without having to hold the microphone in the hand. By placing it close to the mouth, it captures the voice with minimal influence of surrounding noise and maintains a constant volume even when the speaker is moving. There are two basic versions: wired, where the cable runs directly to a recording device such as a camera or voice recorder, and wireless. In the wireless version, the microphone is connected to a compact transmitter, often called a "bodypack", which the speaker carries, for example behind his or her belt, and which sends the signal wirelessly to a receiver near the camera. It is often equipped with a foam or fur cover that serves as wind protection and also muffles unwanted noises when pronouncing so-called plosives, such as the letters "p" or "b". It is commonly encountered in TV broadcasts, interviews, conferences, theatre or by video makers who need to ensure clear sound without a visible microphone in the shot.