eTrex made with small size and minimalist, eTrex receive signals from 12 channels, in addition to their small size, eTrex is also favored by the field workers, all the buttons on the side not in front like other GPS GPS-dgunakan so easily with one hand. eTrex with AA Battery can last up to 22 hours. Can save more than 500 users Waypoint with icon graphics, and features TracBack ®.