The Boya BY-M8C Cardioid Lavalier Microphone is a professional tie-pin microphone that lets you record interviews and conversations. Thanks to the cardioid recording pattern, the microphone is sound-sensitive at the front. In this way, disturbing sounds from the environment are suppressed. So you make clear sound recordings. You clip the tie-pin microphone to the interviewee's clothes. This allows you to operate the camera easily during interviewing. You also make clear pictures outside with the included wind screen that suppresses noise.