The cardioid (unidirectional) pickup pattern provides greater gain-before-feedback and isolation from ambient noise and other unwanted sound sources. A carefully shaped frequency response includes a voice-frequency presence peak and a low-frequency roll-off to compensate for the proximity effect inherent in cardioid mics during close-talk operation. Fully adjustable wire frame. Comfortable & durable. Flexible gooseneck design means quick reposition of mic. Genuine Croakie elastic band keeps mic in place. 1 Year Shure Limited Warranty.