Attributes . WAAS-Enabled, NMEA 0183 Compatible, USB Interface and NMEA 0183 Ports, 18 hrs. of Battery Life, 500 Waypoints, 50 Reversible Routes, Floats and LPX7 Waterproof, Track Logs, 10 Saved Tracks, Hunt/Fish Calendar, Sun and Moon Information, Tide Tables, Area Calculation . Names