EXCLUSIVE, ENHANCED HIGH-BRIGHTNESS 480 X 480 PIXEL 5" DISPLAY ; SUNLIGHT VIEWABLE WITH BRIGHTER, CLEARER, WIDER-ANGLE VIEWING, PLUS FULLY ADJUSTABLE;SCREEN/KEYPAD BACKLIGHTING; IMPROVED UNDERWATER FISH-HOLDING STRUCTURE IDENTIFICATION; PEERLESS BOTTOM TRACKING PERFORMANCE WITH UP TO 8X ZOOM RANGE; COLORLINE(TM) GREATLY IMPROVES TARGET DEFINITION & SEPARATION, PLUS DEFINES BOTTOM COMPOSITION; BUILT-IN ENHANCED U.S. BASE MAP INCLUDES COASTAL SHORELINES, OVER 100,000 BODIES;OF WATER AND 5,000 ENHANCED LAKES WITH HIGH-DETAIL SHORELINES & DEPTH CONTOURS; EXCLUSIVE FISHING HOT SPOTS(R) FISHING POIS, INCLUDES MARKED FISHING AREAS, BOAT LAUNCHES & FISH HABITAT AREAS.; LAKE INSIGHT(TM) COVERAGE FOR CONTINENTAL U.S. INLAND WATERS & GREAT;LAKES, & NAUTIC INSIGHT(TM) COVERAGE FOR U.S. COASTAL WATERS.; HIGH-SPEED SECURE DIGITAL CARD(TM) SLOT