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With the MarCum® brand, expect the high-quality and most advanced sonar flasher systems including the MarCum® M1 Sonar Flasher System. This sonar offers brushless, quiet operation with bright and crisp color definition of the bottom, fish, baitfish, and your lure to make catching fish easier. This commercial-grade sonar flasher offers the highest-resolution display available. Advanced features like split-screen zoom, patented interference rejection, and 1,000 watts of output power make ice fishing with the MarCum® M1 Sonar Flasher a great experience.Features: