UM725 Fixed Mount Marine VHF Radio - WhiteFull-Featured VHF Marine Radio with Private Text Messaging - Send messages over Marine Channels to other capable radios. 25 Watt Fixed Mount Marine VHF Radio.Uniden is the first to offer text messaging using marine VHF radio. You and your crew will enjoy the privacy of texting boat-to-boat, rather than broadcasting over your radio for all the boats in your area to hear. The UM725 marine radio comprises the latest features, including IPX8 submersible rating, NOAA Weather Channels, DSC Distress send and receive, and speaker microphone-equipped.Features: All USA, Canadian, and International Marine Channels Full Class D DSC Compliant - Meets ITU-R 493-14, -15, IEC 62238 1Watt / 25Watt Transmit Power - Transmits at full power to ensure maximum range Largest LCD size in class - 68mm(w) x 38mm(h) Private Text Messaging - Send messages over Marine VHF Channels to other equipped radios NOAA Weather Channels - With Weather Alerts Speaker Microphone Equipped - With UP, DOWN, PTT, 16/9/TRI keys Remote Microphone Capable - Optional Remote Microphone for second station operation NMEA0183 Input and Output - Send and receive GPS and DSC information to other devices IPX8 Rated Waterproof - Submersible to 4.9ft. for 30min with no water intrusion Quick Guide (pdf)Owner&';s Manual (pdf)