The most advanced flasher-sonars ever built, the MarCum M Series offers brushless, dead-quiet operation with dazzling bright and crisp color definition of bottom, fish, baitfish and your lure, all illuminated on the highest resolution display available in a commercial grade flasher. With advanced features like split screen zoom, patented interference rejection and 1000 watts of expertly managed output power youll always know if youre angling for a school of bait fish or the catch of the day.