The Astatic 636L Special Edition Noise Cancelling Dynamic Microphone is ideal for CB, amateur radio and SSB communications. It fits all 4-Pin Cobra®, Uniden®, and Galaxy radios, and effectively reduces wind and vehicle noise. Durable construction is combined with a polyurethane-coated steel grille and soft vinyl lip guard. It also includes Astatic's famous 'Super Flex' Stainless Steel Cord and a Double Chrome Plated Grill Screen.