BW&reg; MC-50 DSLR Camera Photography Interview Mounted Shotgun MIC Microphone for Canon Nikon Sony Blackmagic Camera DV Camcorder Specially designed for the camera and high-sensitivity condenser microphone to enhance the quality of the recording Heart-shaped single-point pickup features can effectively reduce the noise of the surrounding environment to be picked up Shock-resistant structural design, to reduce the mechanical noise of the camera and other vibration noise Using a standard, universal 3.5mm connecting plug Low Cut Function:Specially designed to reduce low frequency noise. Low Cut function can be used to reduce the background noise, such as wind or other low frequency sound. Slide the button to Low Cut position when under these environment.