Check the listing for details. ASTATIC 636L-SE Silver Edition CB Ham Radio Microphone 4-pin mic Metal Cord. Condition: New. Listed at 36.99 USD. Astatic 4-pin 636L-SE DX-1 Silver Edition. The Ultimate Noise Cancelling MicrophoneNew in Sealed Hard Shell Plastic Packaging The Astatic Model 636L-SE Noise Cancelling Dynamic Microphone is ideal for CB, amateur radio, and SSB communications. It fits all 4-pin radios, and effectively reduces wind and vehicle noise. Durable construction is combined with a double chrome plated steel grille, soft vinyl lip guard, chrome plated key button, and our indestructible super-flex stainless steel cord. Astatic's tailored frequency response provides maximum talk power. Product is in stock and will ship immediately upon payment. Shipping is FREE to the continental United States (lower 48 states). Ships via U.S. Postal service Our customer feedback shows we put 100% into offering the fastest shipping and best customer service on the internet.