This undirectional cardioid dynamic microphone features a large 1.125" diaphragm and an internal rubber element suspension system for reducing undesirable noise. Excellent 180 degree rear rejection cardioid response. Excellent articulation across the specified frequency response with a rise in response to match the voice characteristics of speech. Output tailored to rise from 500 Hz, crossing 1 kHz up to 4 kHz, exaggerating the microphone output frequency response of these vocal frequencies. The result is clear, overall well-articulated audio response tailored to match intelligibility of human voice. Our top of the line microphone, along with the M650. $79.