Garmin GPSMAP 60 Personal Navigation Unit WAAS-Enabled, 12 Parallel-Channel GPS Receiver Large, Grayscale Display With Bright, Backlit Led 50 Reversible Routes, 10,000 Track Points With Tracback Technology &amp; 1,000 Waypoints With Additional Graphical Icons For Location Identification Serial &amp; Usb Connections For Fast &amp; Versatile Download Transfer Built-In Basemap With Automatic Routing Capabilities &amp; Turn-By-Turn Voice Prompts