The Lowrance 000-11788-001 HDS-7 GEN3 fishfinder features a StructureScan Transducer. It has a seven-inch multi-touch display. This device is engineered for DownScan Imaging for the ideal pictures either around or below your boat. The HDS-7 GEN3 offers many useful features like an internal GPS antenna, a built-in CHIRP sonar, and in-built insight USA charts for US waters. It also allows integrated wireless connectivity with the Lowrance GoFree App and other compatible devices onboard for you.