The HELIX 7 CHIRP MEGA DI GPS G4N fish finder features MEGA Down Imaging, Dual Spectrum CHIRP Sonar, AutoChart Live, Internal GPS and Humminbird Basemap built-in. An upgraded high-definition 7" display will give you the best view of the many pre-loaded split screen view options so that you'll never miss a fish. All HELIX 7 G4N models support Ethernet networking, Bluetooth(R), NMEA 2000(R), Wi-Fi and are compatible with the One-Boat Network(TM), which means you'll have total control of your fishing machine at your fingertips.

　　This fish finder is new in the box, and is the head unit only.

　　For all detailed info, visit https://humminbird.johnsonoutdoors.com/us/shop/fish-finders/helix/helix-7-chirp-mega-di-gps-g4n