FULL-FEATURED SONAR WITH SUNLIGHT-READABLE 4.5", 128 X 128 16-COLOR CSTN DISPLAY; ULTRASCROLL™ HIGH REP RATE SONAR; DUAL BEAM TRANSDUCER WITH SELECTABLE NARROW (14 FT) OR WIDE (45 FT) VIEW FOR MAXIMUM FRESHWATER PERFORMANCE; HIGH-DYNAMIC RANGE, ANALOG RECEIVER PERFORMS IN WATER AS LITTLE AS 1 FT DEEP; AUTOGAIN TECHNOLOGY FOR VISIBILITY OF MORE FISH; CCFL BACKLIGHT FOR DISPLAY & KEYPAD; PATENTED TRANSOM/TROLLING MOUNT TRANSDUCER; EXCELLENT SHALLOW WATER PERFORMANCE; 1200W MAX, 150W RMS; 900-FT DEPTH; SEE-THRU® TECHNOLOGY SHOWS WEAK & STRONG RETURNS SIMULTANEOUSLY; POWER-DOWN SETTINGS BACKUP: SETTINGS ARE NOT LOST WHEN UNIT IS TURNED OFF; 2X OR 4X AUTOMATIC & MANUAL ZOOM; ADJUSTABLE KEEL OFFSET; ALARMS FOR FISH SIZE, SHALLOW WATER, DEEP WATER & LOW BATTERY; BATTERY VOLTAGE INDICATOR; NMEA SONAR DATA OUTPUT; DIM: 4.9"H X 6.1"W X 2.9"D