GPSMAP 298 Sounder CHARTPLOTTER Marine GPS ECHO Fishfinder Built-in GPS antennaGPSMAP 298 Sounder CHARTPLOTTER Marine GPS ECHO, Fishfinder PERFECT! With built in GPS antenna Works perfectly, fully tested with guarantee. Including the Sun Cover. You will receive what you can see on the photos. ****** Own the lake with the GPSMAP 298 Sounder. With a powerful built in sounder and enhanced worldwide basemap, the 298 can handle any fishing adventure. Catch Some Fish The 298 comes with a built in dual frequency 500 watt (RMS) sounder