Garmin Foretrex 101 Waterproof Cycling GPS Waterproof, wrist-mounted GPS navigator for hikers, mountain bikers, and marine enthusiasts Simple, hands-free operation with dedicated GoTo, Page, Enter/Mark, Up, Down, and Power buttons Storage for 500 waypoints and 10,000 trackpoints; accurate to within 15 meters in GPS mode TracBack technology creates electronic "breadcrumb" trail for returning to campsite Includes bike mount for off-road riders; runs on 2 AAA batteries; 1-year warranty