Lowrance 000-11790-001 HDS-9 GEN3 Insight Fishfinder/Chartplotter with CHIRP/StructureScan Sonar and 83/200KHz Transducer Improved interface with touchscreen or keypad option Built-In CHIRP/Structure Scan Sonar Internal GPS antenna Built-in Insight USA charts for Coastal and Inland US waters 83/200KHz Transducer included