The all-in-one transducer features ClearVü and SideVü ultra high-definition scanning, a traditional high and wide CHIRP sonar, and multiple scan rates and a vivid color palette. The all-in-one transducer features ClearVü and SideVü ultra high-definition scanning, traditional high and wide CHIRP sonar and multiple scan rates and a vivid color palette. Spend less time searching and more time fishing. The GT56 is an exceptional all-in-one fishfinder. It features an ultra high-definition SideVü fishfinder with a range 20% greater than 1,000 kHz, an ultra high-definition ClearVü fishfinder and a traditional CHIRP high and wide fishfinder. With three scanning sonar frequencies, you'll get the best performance at any depth.