8.4" SUPER VGA COLOR VIEWING FOR EXCELLENT SONAR GRAPH & NAVIGATIONAL DETAIL; BRILLIANT, PURE-WHITE LED SCREEN/KEYPAD BACKLIGHTING IS FULLY ADJUSTABLE TO DIM-TO-ZERO;TO PRESERVE NIGHT VISION; SUPERIOR CLARITY & UP TO AN ASTOUNDING 120ð VIEW OF FISH & STRUCTURE FINDING COVERAGE; PHENOMENAL SEPARATION OF FISH TARGETS FROM STRUCTURE, BAITFISH, THERMOCLINES, CLUTTER & BOTTOM; IMPROVED UNDERWATER FISH-HOLDING STRUCTURE IDENTIFICATION; PEERLESS BOTTOM TRACKING PERFORMANCE WITH UP TO 8X ZOOM RANGE; SUPER-SENSITIVE, 16-CHANNEL INTERNAL GPS+WAAS ANTENNA WITH FASTER TIME-TO-SIGNAL;LOCK & PRECISION POSITIONÃNETWORKS WITH NMEA 2000(R); BUILT-IN ENHANCED U.S. BASE MAP INCLUDES COASTAL SHORELINES, OVER 100,000 BODIES;OF WATER & 5,000 ENHANCED LAKES WITH HIGH-DETAIL SHORELINES & DEPTH CONTOURS; REVOLUTIONARY CONTOUR SHADING FOR STUNNING LIFE-LIKE PERSPECTIVES OF BOTTOM STRUCTURE & TOPOGRAPHY; EXCLUSIVE FISHING HOT SPOTS(R) FISHING POIS CONTENT, INCLUDES MARKED FISHING AREAS, BOAT LAUNCHES & FISH HABITAT AREAS; INSIGHT USA(TM) COVERAGE FOR CONTINENTAL U.S. INLAND WATERS & GREAT LAKES, PLUS U.S. COASTAL WATERS; UNIQUE NEW FLYWHEEL(TM) SCROLL DIAL & COMMAND SOFT KEYS FOR QUICKER, EASIER;CONTROL & FINE-TUNING OF FISHFINDING & NAVIGATIONAL FEATURES; 2 HIGH-SPEED SECURE DIGITAL CARD(TM) SLOTS