Garmin Echomap 50Dv Combo -
Designed for the angler who wants it all, Garmin's echoMAP 70DV Combo comes with DownVü™ and CHIRP produces the clearest picture for identifying fish and structure below the boat. 5" VGA touch-screen display for customizing your angling setup. 77/200kHz transducer transmits depth, imagery and water temperature almost instantly. Internal 10Hz GPS/GLONASS relays your position and updates your headings ten times a second. Wirelessly connect to your iPod®, iPad® or iPhone® for BlueChart® Mobile. Two micro-SD® slots for seemingly endless amounts of storage. Pre-loaded with LakeVü HD Maps.