Shure PGA31 Performance Headset Condenser Microphone Wireframe headset fits securely for active speakers and vocal performers Permanently charged electret condenser cartridge delivers detailed, crisp vocals Unidirectional cardioid polar pattern rejects unwanted noise for improved sound quality and higher gain-before-feedback Flexible gooseneck design and discrete adjustment capabilities optimize microphone positioning for further source isolation TA4F (TQG) connector seamlessly integrates with Shure wireless body packs