Our exclusive VHF490 is an economical fixed VHF with full Class D DSC functionality. The VHF490 marine radio features new quick-disconnect cables for easy transfer in/out of vessels, splashproof IPX4 waterproof rating, and a full set of Class D Digital Selective Calling (DSC) features. Included microphone features non-slip grip and convenient channel up and down as well as instant Channel 16/9 keys. Key Features DSC (Digital Selective Calling): Including Distress Button, Position Send and Request. Gives you the ability to press one button to call for help during an emergency. Full Class D DSC capability. High performance transceiver ensures clear communication and helps prevent and reject interference. Channel Names: You can assign names to all marine channels for quicker reference. S.A.M.E. Weather Alert: Specific Area Message Encoding - During a NOAA Weather or Emergency Alert, a code for your specific location will alert you to severe conditions in your immediate area. Specifications Channel Selection: Up/down buttons on unit Controls: Volume, squelch, eight keys Mic Controls: Push to talk Display Type: Backlit dot-matrix LCD Scanning Modes: Programmable, Dual- and Triple-watch Weather Alert: Yes, with S.A.M.E. Receiver Performance: Sensitivity: 0.25µV; Rejection: 70dB NMEA Interface: NMEA 0183 Waterproof Rating: IPX4 Dimensions: 2 1/2"H x 6 1/2"W x 5 1/8"D Warranty: Three-year waterproof, $49.95 flat rate