SONAR: Features crisp, clear traditional sonar and brilliant ClearVu sonar High-contrast vivid scanning sonar color palettes Supports a variety of Garmin transducers for two types of sonar: Garmin traditional and ClearVu scanning sonars NAVIGATION: Built-in Garmin Navionics+ coastal or inland mapping which includes a 1-year subscription for downloadable daily updates and more ADDITIONAL DETAILS: Wirelessly share information with other compatible ECHOMAP UHD2 chartplotters Built-in Wi-Fi connectivity 1 microSD(TM) card; 32 GB IPX7 water rating