Traditional Chirp: Includes dual-beam transducer with Garmin CHIRP traditional sonar for crystal-clear images and remarkable target separation Built-in Garmin Quickdraw™ Contours mapping software lets you create and store maps with 1' contours for up to 2 million acresBuilt-in Wi-Fi® for access to ActiveCaptain™ app so you can receive smart notifications, access Quickdraw Contours Community and transfer waypoints and software update notificationsBuilt-in GPS lets you mark waypoints, create routes and view boat's speedBright, sunlight-readable display and intuitive user interfaceRugged design for every fishing environment