ECHOMAP Plus 74cv is a combo with some serious connections.A 7" diagonal touchscreen with keypad-assist for when it's really wet, a transom mount transducer that dials in two kinds of sonar—mid band CHIRP traditional sonar plus CHIRP ClearVü scanning sonar—with the breakthrough Connected Boat technology of Garmin's ActiveCaptain App.Key FeaturesGet connected with ActiveCaptain App: Garmin's free all-in-one ActiveCaptain mobile app allows you to manage your marine experience from nearly anywhere. It creates a simple yet powerful connection between your compatible mobile device and your chartplotter, charts, maps and the community.Keep your charts up to date: Use the combo's built-in Wi-Fi to pair with the free ActiveCaptain app for access to OneChart, which allows you to update or purchase and download new chartsSmart Notifications from your smartphone appear on the screen: ActiveCaptain also gives you access to smart notifications (when paired with a compatible mobile device), plus the ActiveCaptain community for marina and other points of interest details and boater reviews, Quickdraw Community data and moreClear Scanning Sonar Images: Garmin CHIRP traditional sonar and down-looking ClearVü scanning sonar are combined into one transducerCHIRP ClearVü scanning sonar gives you a nearly photographic image of whats below your boatCHIRP traditional sonar shows clear target separation and definition, because it puts even more energy onto the target than traditional sonarIncludes BlueChart g2 Charts: High-detail BlueChart g2 charts covering the coastal U.S. (east coast, west coast, Gulf of Mexico, U.S. and the Canadian side of the Great Lakes). Derived from official charts and private sources to provide navigational aids, spot soundings, depth contour, tides and currents and more.Use Quickdraw Contours to create your own charts: Instantly create personalized fishing maps on-screen with 1' contours. Tailor them to fit your needs. These are your maps — you own them. Keep the data to yourself, or share it with the Quickdraw Community on Garmin Connect.SailAssist: SailAssist features include laylines, enhanced wind rose and heading and