DESC: Combining the 256-color technology of the sonar industry and the superior precision of Lowrance GPS units, the M-68c sonar/map gives you all the capabilities of the extreme high-end combo units in a smaller, more affordable package. Features a full 12-parallel channel GPS and WAAS receiver and 40 map ranges from .02 to 4,000 miles with easy zoom. The high-bright 3.5" diagonal TFT active matrix transflective display delivers a wide viewing angle and superb readability in direct sunlight. And, it includes an advanced LED screen and keypad backlighting for night and low-light operation.