The Boya BY-DMR7 Mini Condenser Microphone BY-DMR7 with Recorder is a directional microphone with which you record interviews, presentations and conversations. The supercardioid directional pattern suppresses sounds from the environment, allowing you to take clear pictures. Through the recorder in the microphone you save your recordings on a microSD memory card. You can easily control it via the buttons on the microphone. You attach the microphone to the hot shoe of your camcorder, SLR or system camera. With a 3.5 mm jack you connect both devices.