5 W GMRS two-way radio offers extended range, up to 20 miles; communicate by voice or unit-to-unit text messaging,High-sensitivity GPS and GLONASS satellite reception; tracks in more challenging environments than GPS alone,Position reporting feature shows locations of other Rino users on the same channel; lets them know where to find you in an emergency,3" sunlight-readable touchscreen with dual orientation (landscape or portrait view),Dual battery system provides up to 14 hours between charges on lithium-ion pack or up to 18 hours with optional AA batteries (sold separately),Rino 755t adds preloaded TOPO U.S. 100K maps and 8-megapixel autofocus camera with LED flash/torch