Before you take your Rino into the field, watch this 34-minute DVD for a
quick overview of your unit's operations. The DVD explains what the
operating keys do, how to use the two-way radio, using the GPS, marking
waypoints, looking up destinations and navigating and sending and receiving
locations. You also learn how to create routes, use TracBack to retrace your
steps and download detail from MapSource™ CD-ROMs.