Mic placement is important, particularly with directional mics. This video walks you through how to adjust the 4066 OmniDefinition:
Short for Omnidirectional. See Omnidirectional. HeadsetDefinition:
A headphone with boom microphone for intercom, communications, learning labs, gaming, or sportscasting. Mic and the 4088 Directional Headset Mic so that they fit snuggly, comfortably and properly on the head.