High definition translates to better image detail, and better image detail translates to more fish caught. SwitchFire® downlooking sonar on an 8" full-collor LCD screen lets you see everything directly beneath your boat. View charts with full screen or split screen with sonar. External GPS with WAAS and built-in ethernet networking. 4,000-watt peak-to-peak power output. Displays water temperature and speed. Chart-plotting with LakeMaster® and Navionics® compatibility.