The Sony RM-X60M Remote Marine Radio Controller is a portable controller designed for use in marine environments. It has a robust construction made of high-quality material and is water-resistant. This controller allows you to control on-board radios from any location. The controller has an intuitive LCD screen that is easy to navigate and allows you to manage settings such as volume control, frequency selection and other functions effortlessly. Connections for external speakers and external antennas are also available. You can also use the rechargeable battery to listen to 5 hours of continuous radio without power. The Sony RM-X60M Remote Marine Radio Controller is perfect for connecting to your navigation system and radio equipment.