Magellan eXplorist GC is the first GPS device 100% dedicated to geocaching that includes out-of-the-box paperless geocaching, seamless connection to geocaching.com, and a brilliant color screen, all packed into a rugged and waterproof device. Free 30 day premium membership to geocaching.com. Pre-loaded with the World's Most Popular Geocaches. Battery life: 18 hrs on two AA. Wt: 14.4 oz.