Dual output power for short and long communication. * Allows operation on any of the three (3) different channel maps established for these areas. * Instant access to national all hazards and weather information, 24 hours a day. * When connected to a Cobra or most other GPS receivers, you can send your position to other boats in an emergency, or exchange position information with other boats or stations. * Monitors two (2) channels at once - Channel 16 and one (1) user selected channel.