HELIX 7® G2 SonarThe HELIX 7 Sonar G2 with our new user interface and operating system, features a brilliant 800H x 480V, 7" 9-bit color display with backlight. DualBeam PLUS sonar with 4000 watts PTP power output. Maximize your angling experience with the Humminbird HELIX 7 Sonar G2 fishfinder system.TechnologySwitchFire Sonar:Take command of how your sonar returns appear with our Clear and Max Modes.DualBeam Plus Sonar:Two beams combine for great detail and a wide coverage area. Use the narrow beam for high-accuracy returns and bottom. Use the wide beam when you want a larger search area.Upgradable Software:Access software updates to enhance the performance of your Humminbird unit through our My Humminbird section of the site.High Definition Display:Provides bright, crystal-clear images for easy viewing in harsh sunlight.