This compact combo has lots of built-in benefits. Easy-to-install and even easier to use, it has a bright display that is easy to read on a sunny day on the water. It includes one transducer that features both Garmin CHIRP traditional sonar that delivers remarkable target separation and CHIRP ClearVu scanning sonar for nearly photographic images of what's below the boat. It also features a quick-release mount allowing you to quickly install and remove your device from power and mount. Transom and trolling motor mounts included. Preloaded with 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. The built-in sonar capabilities of ECHOMAP Plus include our CHIRP traditional sonar, one of the most sophisticated sonar technologies available for the fishing and boating public. CHIRP traditional sonar provides amazingly clear target separation and definition, because it puts even more energy onto the target than traditional sonar. It also provides traditional sonar support for Minn Kota and MotorGuide trolling motors with integrated transducers. Garmin CHIRP ClearVu scanning sonar gives you a nearly photographic image of what's below your boat. You clearly see structure, submerged objects and fish. Garmin CHIRP traditional sonar and CHIRP ClearVu scanning sonar are combined into one transducer. Instantly create personalized fishing maps on-screen with 1' contours as you fish. 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. Step up to LakeVu HD Ultra with Max Def Lakes, BlueChart g2 HD or BlueChart g2 Vision HD, which adds Auto Guidance and other great features. A single microSD card slot provides expandable memory for accessory map purchases. When you're off the water, it's easy to keep your ECHOMAP Plus combo safe and secure. You don't have to mess with plugging and unplugging wires from the unit because the cords plug directly into the mount. This allows you to quickly install and remove your ECHOMAP Plus from power and the mount.