The Replacement stock MIC/Microphone for 4 pin Cobra CB Radio - Workman DM507-4 is a high-quality microphone designed for analog FM connectivity. It is compatible with Cobra CB Radios and includes all necessary components for easy installation. With a frequency range of 26.965-27.405 MHz, this microphone allows for clear and reliable communication. The black color and compact package dimensions make it a sleek and practical addition to any radio communication setup. The Workman brand ensures durability and quality, making this microphone a reliable choice for consumer electronics.