Audio-Technica ATW-C4100 Cardioid Dynamic Microphone CapsuleThis Audio Technica ATW C4100 Cardioid Dynamic Microphone Capsule utilizes a cardioid polar pattern. With this pattern sound from in front of the mic capsule is picked up well, with sound from the sides and back largely left out. Feedback and background noise are controlled and reduced from this cardioid pattern. Between the cardioid polar pattern and handheld use, this capsule works well in many different speaking applications. A dynamic style