Garmins eTrex Summit HC features a high-sensitivity GPS receiver for peak performance in any environment and includes 24 megabytes (MB) of internal memory, a detailed basemap, crisp colour screen, barometric altimeter and electronic compass. With its high-sensitivity, WAAS-enabled GPS receiver, eTrex Summit HC locates your position quickly and precisely and maintains its GPS location even in heavy cover and deep canyons. The product includes a basemap and also includes 24 MB of internal memory, so you can load waypoints and routes from the included MapSource® Trip and Waypoint Manager software and add map detail from Garmins entire line of optional MapSource® mapping products. The 256-colour, sunlight-readable display makes it easy to distinguish map details â€” even in bright sunlight. Package includes: eTrex Summit HC, MapSource® Trip and Waypoint Manager software, USB cable, bike clip, wrist strap, ownerâ€™s manual and quick start guide.