The Pyle PMHMS20 is a headset microphone that records your voice accurately while letting the speaker give a handsfree performance. With a frequency response range of 20 Hz - 20 kHz, this Pyle microphone effectively covers a wide spectrum of audible frequencies. Owing to its -45 dB sensitivity, the Pyle PMHMS20 is extremely receptive to loud sounds. This Pyle microphone has an omni-directional polar pattern that picks up sound from all directions. This headset microphone has a back electret condenser that ensures crystal-clear recording of your voice.