Standard Horizon mote Access Microphone RAM4 f/GX6000 & GX6500 Wired. Specifications for Standard Horizon Wired Remote Access Microphone RAM4 f/GX6000 & GX6500: Manufacturer: Standard Horizon Color: Black Features of Standard Horizon Wired Remote Access Microphone RAM4 f/GX6000 & GX6500 Controls all radio functions of the GX6000 and GX6500 Operate up to 2 RAM4 wired remote stations Submersible IPX8 waterproof rating (1.5 M or 4.92 feet for 30 minutes) Intercom feature allows you to communicate between the radio RAM4 and Wireless RAM4W microphones 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 23 routing cable included 3 Year Waterproof Warranty The SSM-70H is only compatible with the GX6000 and GX6500 it is not backwards compatible with other Standard Horizon Models Package Contents: Standard Horizon Wired Remote Access Microphone RAM4 f/GX6000 & GX6500 Standard Horizon SSM-70H: mote Access Microphone RAM4 f/GX6000 & GX6500 Wired