ULTRA-BRIGHT 4 inch DIAGONAL QVGA DISPLAY; 4000W MAX, 500W RMS; 320 X 240 PIXELS; 800 NITS OF BRIGHTNESS; STREAMLINED USER INTERFACE OFFERS EASY SELECTION OF FUNCTIONS & FEATURES; PRELOADED WITH WORLDWIDE SATELLITE IMAGERY & US INLAND LAKES CARTOGRAPHY; OVER 5,000 LAKES & NAVIGABLE RIVERS WITH DETAILED SHORELINE INFORMATION AS WELL AS DEPTH CONTOURS, BOAT RAMPS, MILE MARKERS, ETC. LAKES ARE ENHANCED WITH SATELLITE IMAGERY; SINGLE SECURE DIGITAL CARD SLOT SAVES WAYPOINTS, ROUTES & TRACKS; BUILT-IN GPS ANTENNA; BNC CONNECTOR FOR OPTIONAL GA29 REMOTE OR GPS ANTENNA; BACKLIT KEYPAD FOR EASIER OPERATION AT NIGHT; 2 NMEA 0183 1/0 PORTS; CANET PROPRIETARY BUS ALLOWS DISPLAY & CONTROL OF FULL FEATURE SOUNDER DATA ON CHART PLOTTERS; SOUNDER DESIGN FEATURES SHALLOW-WATER PERFORMANCE; 3200W MAX DUAL FREQUENCY, 400W RMS DUAL BEAM; DEPTH: 900 FT DUAL BEAM, 1500 FT DUAL FREQUENCY; INCLUDES A DUAL-BEAM TRANSDUCER 50 KHZ 45 & 200 KHZ 10 OR 80 KHZ 45 & 200 KHZ 14; PATENTED TRANSOM/TROLLING MOUNT TRANSDUCER; ULTRASCROLL HIGH-REP RATE SONAR PROVIDES FAST SCREEN UPDATES; AUTOGAIN TECHNOLOGY ENHANCES TARGET VISIBILITY; SEE-THRU TECHNOLOGY; WATER TEMPERATURE LOG GRAPHICALLY RECORDS WATER TEMPERATURE DATA; ROUND FLASHER DISPLAY MODE (IN DUAL-BEAM MODE) & A-SCOPE (IN DUAL-FREQUENCY MODE); WHITELINE; ADJUSTABLE DEPTH LINE HELPS GAUGE DESIRED FISHING LEVELS & BOTTOM CLEARANCE; SPLIT ZOOM DISPLAY OFFERS A CLOSER LOOK AT FISH TARGETS & BOTTOM STRUCTURE; 2X, 4X & BOTTOMLOCK ZOOM; ADJUSTABLE KEEL OFFSET; ALARMS FOR FISH SIZE, SHALLOW WATER, DEEP WATER & LOW BATTERY SUBCATEGORY2: GPS RECEIVERS. Warranty: ONE YEAR.