Enhance your marine communication with the Icom HM-205RB Microphone, designed specifically for the M506 rear connector. This robust microphone features a user-friendly design, ensuring clear audio transmission and reception. Its durable construction is perfect for the harsh marine environment, while the ergonomic shape provides comfort during extended use. With a coiled cord for flexibility and a built-in speaker, you can enjoy hands-free operation. Whether you're navigating or relaxing on the water, the HM-205RB is your reliable companion for seamless communication. Upgrade your boating experience today!