The Astatic 636L WG 4 Pin Noise Canceling CB Mic is a high-quality microphone designed for use with Cobra brand radios. It features a 4 pin connectivity for easy installation and reliable performance. With its noise cancellation feature, this microphone helps to reduce background noise and ensure clear communication. Perfect for use in radio communication devices, this Astatic microphone offers a superior audio experience with its advanced technology and brand reputation.