DESC: Fishfinder 535 features a big, high-resolution screen for greater detail and clarity. Key Features Very High Definition 320Vx320H 5" Display with UltraBlack™ Contrast Enhancement Real Time Sonar™ Instantly Captures the Action Under the Boat at Up to 40 Times a Second Sonar Echo Enhancement™ Shows a Bait when Vertical Jigging and Delivers 2 1/2" Target Separation Tilting & Swiveling Quick Disconnect Mount System Better Performance with 250 Watt RM