Mega Imaging+ Mega Imaging+ provides sonar coverage under your boat up to 200 (60m) with Mega Down Imaging+ and sonar coverage up to 200 (60m) on both sides with Mega Side Imaging+. In addition, take advantage of 20% more detail, so you can find fish fast. Dual Spectrum Chirp With a powerful Low-Q CHIRP transducer, our Dual Spectrum Chirp sonar provides crystal-clear returns, exceptional target separation and amazing fish arches. Mega 360 Imaging Compatible Mega 360 Imaging provides the clearest sonar imagery using our Mega Imaging+ technology, in a 360 view around and under your boat. Available in models for Minn Kota Ultrex and Fortrex, as well as Universal and No Mount options. Mega 360 Imaging can be used while sitting still or while using your trolling motor, all without interrupting your sonar picture. Compatible with HELIX G3N/G4N models with Mega Imaging+.