GPSMAP 640 marine & auto GPS, MFG# 010-00696-40, 5.2" diagonal touchscreen, w/ internal GPS, coastal & road maps, lithium-ion battery pack, marine mount with power/data cable, USB cable, protective cover, and owner's manual.

Learn all the features & functions & HOW TO USE & MAXIMIZE your lowrance unit. DVD training makes it easy! Interactive menus allow quick and easy chapter review and allow you to go to a specific location time and time again. This step-by-step instructional training DVD walks you through the key feat...