The compact Garmin eTrex Vista H GPS includes an electronic compass and barometric altimeter, and sports a high-sensitivity receiver, USB interface and easy-to-use rocker switch. Also includes 24 MB of built-in memory, crisp resolution and built-in basemap. High-sensitivity chipset delivers fast signal acquisition and lock for reception in narrow valleys, dense woodlands and urban jungles. Innovative rocker switch accommodates quick and accurate panning, selection and Enter functions. Built-in memory allows you to download points of interest and detailed maps using Garmin MapSource software sold separately USB interface allows high-speed downloads. Electronic compass provides accurate bearing when standing still. Precise barometric altimeter with pressure recording tracks elevation gain and loss. High resolution display features 4-level gray scale and high contrast for easy viewing. Includes a built-in general basemap and nautical navigational aids for North and South America. Track your route and find your way back with Garmins exclusive TracBack feature. Store up to 1,000 waypoints with graphic icons. eTrex maintains tight satellite-lock, even through dense forest, by continuously tracking up to 12 satellites. Trip computer calculates current and average speed, sunset and sunrise, trip time and distance. Weatherproof body keeps eTrex functioning in wet conditions waterproof to IEC 529 lPX7 standards. WAAS Wide Area Augmentation System enabled receiver delivers sub-3m accuracy. Comes with USB interface cable, lanyard, owners manual and quick reference guide.