The ICE HELIX 7 CHIRP GPS G4 All Season has more fish finding power than one season can handle. Take advantage of crystal-clear Dual Spectrum CHIRP Sonar with 3/4" target separation, CHIRP Interference Rejection, built-in GPS with Humminbird® Basemap and compatibility with both LakeMaster(r) or Navionics(r) maps. Additional features designed specifically for the ICE angler include AutoChart Live ICE, Jig Charge Mode, split-screen views, premium shuttle and 15Ah lithium battery separate this unit from all others on the ICE. And you'll be set once the ICE thaws, because ICE HELIX 7 CHIRP GPS G4 All Season includes everything you need to use it on a boat or in portable applications during the summer. Enjoy it all on a full color, 7" HD LCD display.