Remote Mic for UM725 VHF Radios - WhiteUniden UMRMIC Remote, Second Station Microphone.Features: Remote, second station wired remote microphone Direct connection to the UM725 series fixed mount VHF radio series Fully remote control of connected Uniden Marine VHF radio, including channels, DSC Distress, NOAA Weather Channels, and more Intercom feature between the main radio and the remote microphone Large, Clear "Landscape" oriented, Full Dot Matrix LCD Display Bright White LCD Backlight for Day, Orange for the night (User selectable) Private Text Messaging - Send messages over Marine Channels to other equipped radios NOAA Weather Channels - With Weather Alerts IPX8 Rated Waterproof - Submersible to 4.9ft. for 30min with no water intrusion Included Accessories - 24-foot inter-connect cable, Microphone Hanger, Mounting Hardware Optional extension inter-connect, up to 75ft Owner&';s Manual (pdf)