Standard Horizon SSM72H RAM4X Second Station Remote Control Microphone, Wireless

Operate up to 4 wireless or 2 wired remote stations**

Full AIS target display

Perform all DSC functions: Individual calling, group calling, Position polling and more

Larger high resolution easy to read display with bright backlight

Rotary channel and volume controls

Programmable hot keys for quick menu access

3 year waterproof warranty**Operation of the RAM4X (wireless) requires the use of the SCU-30 wireless base station. When the SCU-30 is used only 1 RAM4 connection will be available on the radio