"The Cobra MR F45 is a full function DSC-capable VHF radio. The selectable 1 or 25 Watt output is perfect for short or long-range communication. This unit has features usually reserved for more costly VHF radio units including Dual Watch, an adjustable backlight, and function keys on the mic. It also includes all of the core features of Cobra's fixed mount radios like; Noise canceling microphone, NOAA Weather Radio, Weather Alert, JIS7 Submersible, Instant channel 16/9, Scan, DSC call log, External speaker jack, Illuminated LCD display, Signal strength meter, GPS input capability, etc. Compliant with the latest FCC specifications for Class-D VHF Radios. Digital Selective Calling allows you to send a distress signal at the touch of a button or exchange position information with other boats or stations. DSC features on this Class-D radio include: A Dedicated Channel 70 (DSC Channel) Receiver, GPS Position Display Capability, Illuminated Distress Button, Easy MMSI Entry, Position Send and Request, Position Input Reminder, Coast Guard DSC Check Capability, etc. Fixed mount radio 1-25 watts Class D DSC calling Compliant with FCC specs for Class D VHF radios Dedicated channel 70 receiver GPS position display capacity Illuminated distress button Position input reminder Coast Guard DSC check capability Dimensions: 6-1/4""W x 2-1/4""H x 7-1/8""D. Manufacturer model #: MR F45-D. Class-D DSC (Digital Selective Calling: The latest in Class-D Digital Selective Calling (DSC) Technology. Submersible: Designed to JIS7/IPX7 standards. Noise-canceling microphone: Blocks background noise for clearer conversations. All NOAA weather channels: Instant access to national All Hazards and weather information, 24 hours a day. 25 Watt VHF: Full power VHF radio for maximum range. NOTE: Allows operation on any of the three different channel maps for USA, Canada and International."