Super-Bright Color 480 x 480 Display, Best Brightness, contrast, resolution for superior viewing. Fully adjustable screen and keypad CCFL backlight. Legendary Lowrance sSonar Performance 4000 W PTP, 500 W RMS; depth to 1000 ft. (305 m) 83/200 kHz, 20/60 degree Skimmer transducer w/temp. Unique Trackback feature for sonar history scroll-back. Easier-to-use menus with Advanced User Mode feature. New case/mounting design for easy one-hand tilt/swivel viewing adjustment, removal for slow and re-install. New unplug 1/4 turn connectors with advance reliability. Lowrance one-year limited warranty.