Improved user-friendly interface and added features like CHIRP sonar and Side Imaging technology make the Humminbird Helix 7 SI Sonar G2N CHIRP SI Sonar/GPS Combo G2N an efficient fish-finding tool. G2N units feature Ethernetnetworkingcapability, built-in CHIRP sonar, enhanced mapping with AutoChart Live and SmartStrike compatibility, and updated software to enrich your time on the water. Vivid 256-color 7 screen with an 800x480-pixel glass-bonded display and 1,500-nit brightness renders super-clear images. Side Imaging technology from Humminbird gives users up to 480 ft. of side-to-side views of logs, weeds and fish images otherwise missed in standard 2-D sonar Down Imaging reveals details to 350 below boat. CHIRP sonar uses a broad range of frequencies for extreme target separation. Use the Bluetoothcapability to view messages and missed calls from your head unit. G2N units can network with other electronics onboard using an Ethernet connection, including Auto Pilot, 360 Imaging and i-Pilot Link by Minn Kota. Compatible with all Humminbird LakeMaster maps, including SmartStrike, as well as Navionics maps. Micro-SD cardn slot allows for multiple mapping options. AutoChart Live allows you to map structure on your screen and save to your micro-SD card. Vegetation and bottom hardness overlays the contours, working with your i-Pilot Link to keep you on top of the fish. Internal GPS stores up to 2,750 waypoints and 45 routes. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Sonar/GPS Combos.