Humminbird 40910-1 600 Series 678c HD Fishfinder (Black) 640 x 480 5-Inch color VGA display 2D Sonar Dual Beam PLUS with SwitchFire Temperature 640 x 480 5-Inch color VGA display Features 640V x 480H pixel screen Power Output (Max): 500 Watts (RMS); 4000 Watts (Peak-to-Peak) 1500 ft depth capable 256 Color TFT Display Features DualBeam PLUS Sonar