Get a better look at what's beneath the surface of your favorite lake with the Lowrance® Hook-7 Fish Finder with CHIRP Sonar and Lake Pro Cartography. The Hook-7 features CHIRP Sonar and Advanced Signal Processing to give you a clearer display with less interference for enhanced target separation at greater depths so you can easily distinguish baitfish from game fish. The Lowrance Hook-7 also includes a highly accurate, built-in GPS antenna to display your position on a detailed U.S. map containing more than 3,000 lakes, rivers and coastal contours to 1,000 feet. Lake Pro Cartography with thousands of detailed lakes across the USA is also included. An easy-to-use interface and convenient page selector menu makes quick one-thumb operation possible.