The Rino 110 is a GPS-enabled handheld that integrates radio functionality to provide two-way communications. It's waterproof, can send communications up to five miles (using GMRS channels), and can "beam" your exact location to another Rino user within a two-mile range (on the FRS spectrum) using "Position Reporting". And because the Rino 110 has standard FRS capabilities, you can talk to friends or family who own conventional FRS radios.The Rino 110 has a built-in city point data base, with 1 MB of internal memory for additional points-of-interest data that can be downloaded from a MapSource Points of Interest CD-ROM.