They say locals know best. But anyone who says that hasn't fished with the ECHOMAP UHD2 chartplotters with clear, crisp sonar and mapping. SONAR SUPPORT: With crisp, clear traditional sonar and brilliant ClearVü sonar, the fish will have nowhere to hide.VIVID COLOR PALETTES: High-contrast vivid scanning sonar color palettes make it easier than ever to distinguish targets and structureOPTIONAL TRANSDUCER: Your ECHOMAP UHD2 device supports a variety of Garmin transducers for two types of sonar: Garmin traditional and ClearVü scanning sonarsPRELOADED CHARTS: Know the waters you're in as if you grew up fishing them by using built-in worldwide basemap with support for Garmin Navionics+™ and Garmin Navionics Vision+™ marine cartographyWIRELESS NETWORKING: If you have another compatible ECHOMAP UHD2 chartplotter on your boat, the 5" and 7" models can wirelessly share information - such as sonar, waypoints and routes - with themACTIVECAPTAIN® APP: Built-in Wi-Fi connectivity pairs with the free all-in-one mobile app for access to the OneChart™ feature, software updates, Garmin Quickdraw™ Community data and more