Standard Horizon is leading the industry again with the Matrix! Some of it's features include: Commercial Grade ITU Class D DSC VHF - 30 Watt Loudhailer with Listen Back and 4 Fog Horns, Bells and Whistles - Large 56mm Internal Speaker produces Loud Audio - Oversized Alphanumeric LCD Display - DSC Distress Call Automatically Broadcasts Lat/Lon and Vessel ID (when attached to GPS) - Lat/Lon, SOG and COG displayed - Oversized Rotary Channel Selector - Channel Name Capability - Display Repeats GPS Information (when attached to GPS) - User Programmable Scan, Priority Scan and Dual Watch - Fully Adjustable Backlighting and LCD Contrast - One Button Access to Channel 16 and 9 - Dual Station Capability (Ram + VH-310 sold separately) - Voice Scrambler (Optional) - Submersible Construction - Choice of Colors: Black or White.