Humminbird 4103001 Helix 7 Chirp Di Gps G2

? 7 HD color screen;? 16:9 widescreen glass-bonded display;? Glare-free, any-angle viewing even in harsh sunlight;? 800 x 480 pixel resolution;? Down Imaging(R) 455kHz/800kHz sonar creates stunning detail of fish, reefs, timber, brush, bridge pilings & more;? SwitchFire(R) sonar with Clear & Max modes;? DualBeam PLUS(TM) sonar for great detail & wide coverage area;? Internal, precision GPS with built-in GPS antenna;? Upgradeable software;? Built-in UniMap(TM) covers the contiguous US coastline, inland lakes & rivers at 30m per pixel resolution;? AUTOCHART(R) Live creates detailed maps with depth, vegetation & bottom hardness;? SmartStrike(TM) map card highlights areas of the lake where fish are most likely to be biting;? microSD(TM) Card slot ;? 2,500 waypoints/50 routes;? Compatible with several optional mapping suites;? 500W RMS/4,000W peak-to-peak;? Depth capability: 600ft/2,500ft with optional 50kHz transducer;? Includes transom mount transducer, cable & gimbal mount;