4" Fest Display With 8-level Grayscale 240 X 160 Pixels 100w Rms Power 800w Ptp Power 200khz/28° -10db Single -beam Sonar Coverage 4 inch 8 level grayscale display Depth: 600 feet Mounting: Tilt Mount Sonar: Single Beam Temperature Humminbird PiranhaMAX 165 single beam (200kHz) fishfinder. 4-inch contrast-enhanced clear edge grayscale display shows you everything, even in direct sunlight. PiranhaMAX Series is ideal for beginners and those who value simplicity over sophistication.