Uniden UM725 - Full Featured VHF Marine Radio, Black. Features Class D GPS, Bluetooth, internal GPS antenna, Dual Watch, channel names, DSC test call, rotary channel knob, and NOAA weather alerts. Comes with all USA, Canadian, and International Marine Channels. It is full class D DSC compliant - meets ITU-R 493-14, -15, IEC 62238. NMEA0183/NMEA200 Input/Output capability and IPX8 waterproof rated - submersible to 4.9' for 30 minutes with no water intrusion. With Bluetooth, you have the ability to connect to a smart phone to text message using VHF frequencies.