Affordable wireless cardioid condenser headset microphone for speech and vocal performance applications offers long-wearing comfort and reliability. Condenser cartridge with cardioid polar pattern. The new SM35 headset condenser microphone from Shure gives multi-instrumentalists the freedom to express themselves without having to sacrifice the sound quality found in traditional headset microphones. A tight, unidirectional (cardioid) pickup pattern provides excellent rejection of off-axis sound sources and prevents feedback and signal bleed. Standard TA4F (TQG) connectivity seamlessly integrates into any Shure wireless bodypack system.