The Shure SM81-LC is a cardioid condenser microphone for use in recording, broadcast, and live sound settings. It features a flat frequency response between 20 Hz and 20 kHz and provides a switchable low-pass filter that can be set to either 6 dB/octave or 18 dB/octave. Other features, such as a lockable -10 dB pad and 146 dB SPL handling (with pad engaged), make the microphone ideal for a variety of situations. The SHURE SM81-LC is a cardioid condenser microphone used in live settings, broadcast, and recording. It features a flat frequency response between 20 Hz and 20 kHz and provides a low-pass filter that can be set to either 6 dB/octave or 18 db/octave. Other features, such as a -10 DB locking pad and 146 dB SPL handling (with pad), make the microphone suitable for a variety of situations..PZA MORE SPECS