The BY-BM3031 On-Camera Supercardioid Shotgun Microphone from BOYA
features a three-level gain switch that provides a +20 dB boost, 0 dB,
or a -10 dB pad that helps prevent distortion from audio overload when
capturing audio. A high-pass filter at 80 Hz rolls-off unwanted
low-frequency noise and rumble, which delivers a richer-sound recording.
The 3.5mm output mini-jack connector makes it compatible with DSLRs,
camcorders, audio recorders, and other devices as well as to capture
broadcast-quality recordings that are clear and precise.
This BY-BM3031 mic is powered by two AA batteries (not included) for up
to 120 hours of use and is equipped with a built-in headphone output
that allows you to do real-time monitoring of the audio source input.
The integrated shockmount is designed to eliminate vibrations when
mounted on a camera or a boompole. In addition, the mic includes a foam
windscreen and fur windscreen that help to decrease vocal plosives and
wind noise when recording dialogs.