Easily make calls, activate advance features and navigate through menus with Cobras MR 57B DSC Fixed VHF Radio. Fully Digital Selective Calling-capable with soft keys for one-touch distress signals and easy exchange of position information to nearby crafts, this unit will operate whether you have only 1 or 25 watts of power. Rewind-Say-Again automatically records the last 20 seconds of missed VHF calls for easy replay. Receives 10 NOAA weather channels with weather alert, and all U.S., Canadian and international VHF channels for instant access to hazards and weather information. A weather alert signals you about nearby storms with an audible tone and visual alarm. Tri-Watch monitors three channels at once and scans all channels, including those in memory, for conversations in progress. PA function for public address to an external speaker. Automatic Radio Check monitors battery voltage when transmitting, RF power output and antenna output. Illuminated large display and keys for nighttime visibility. GPS capability accepts easy plug-and-play of C.P.S. external GPS systems. Meets IPX7 submersible standards. Class-D-rated. Includes a flush and surface mounting kit for quick and easy installation and a GPS interface cable. Manufacturers three-year warranty on U.S.-sold products. Imported. 2.25H x 6.25W x 7.125D. Wt: 2.4 lbs. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Gimbal Mount VHF Radios.