The Boya Lavalier BY-WM5 Microphone Wireless is a wireless microphone set with a tie pin microphone for your camcorder, SLR or system camera. It is a compact reporter set, making it easy to carry in your bag. With the reporter set you record interviews and conversations. You place the receiver on the camera via the hot shoe connection. The microphone with the transmitter is for the interviewer. When there are no obstacles between the transmitter and receiver, the microphones have a range of approximately 50 meters. You can hear the sound recording directly via the supplied earplugs. That way you adjust the settings so that the sound quality is good. If the set is not connected to a camera, use it as a means of communication.