Product Detail Type: Dynamic Frequency Response: 50 to 20,000 Hz Polar Pattern: Cardioid (unidirectional) Switches: Bass rolloff and mid-range emphasis: Slotted response selector switches. See Figure 3 in U Swivel Assembly: Integrated, captive nut for ease of attachment to stand, fits 5/8 in.-27 thread. . The "Shure SM7B Dynamic Vocal Microphone" is best product for you. We recommended Shure SM7B Dynamic Vocal Microphone