The ideal companion guide & accessory for your GPS unit. This instructional training DVD features and covers 2 separate training programs for each Etrex unit - the Etrex and the Extrex Summit. Getting started with your Etr... more »ex unit has never been easier! This step-by-step training DVD walks you through the key features of the unit and gets you up and running in no time. Learn everything you need to know to begin using your new satellite navigator, from installing the batteries and projecting waypoints to mapping fishing areas and setting up routes. Step-by-step instructions include: Introduction to GPS, Battery installation, Position & Datum, Saving & Identifying Waypoints, Navigation Principles and terms, Navigating to Waypoints, Forming & Following Routes, Editing Waypoints and Routes, Saving Tracks, Customizing the Navigator.« less