The cardioid (unidirectional) pickup pattern improves safety from feedback and provides isolation from ambient noise and other unwanted sources. The carefully shaped frequency response includes a presence peak at speech frequencies and a roll-off at low frequencies to compensate for the proximity effect that cardioid microphones experience during close-talk operation. Features Lightweight wireframe and elastic headband adjust for a secure, comfortable fit Extra-strong, small-diameter attached microphone cable resists breakage Collapsible microphone boom for easy storage and transportation Smooth, natural frequency response comparable to high-quality dynamic hand-held vocal microphones High input clipping level eliminates overload distortion Reliable at temperature and humidity extremes Supplied foam windscreen and clothing clip Specifications Shure Warranty: Two Years