DeLorme Earthmate PN-30 Green Handheld GPS with 1:100k Topographic, Detailed Street Maps and POIs A high-sensitivity, high-performance, bright-color-screen handheld GPS that offers an unrivaled selection of display options Comes with three discs containing detailed hybrid 1:100k topographic Super-high-sensitivity 32-channel Cartesio chipset by STMicroelectronics delivers near-instantaneous signal acquisition Includes Topo USA 8.0 PC software for planning before you go One-year warranty