7-inch high-resolution intuitive touchscreen controls NMEA 2000 and NMEA 0183 support for network connectivity, including autopilots, digital switching, weather, FUSION-Link, VHF, AIS and more Garmin Marine Network support for sharing sonar, including Panoptix sonar, maps, user data, radar and IP cameras among multiple units Preloaded U.S. LakeVü g3 maps and BlueChart g3 charts Experience an advanced navigation solution with this compact 7-inch GPSMAP 742xs touchscreen combo. Includes wireless connectivity features for mobile apps, NMEA 2000 support and Garmin Marine Network capabilities for radar and Panoptix all-seeing sonar, including Panoptix FrontVü collision avoidance sonar. It also has built-in Garmin CHIRP and CHIRP ClearVü sonar (transducer sold separately).