eTrex Venture HC is an essential for any outdoor excursion High sensitivity receiver 256 colour sunlight readable screen 24MB internal memory Accepts Garmin TOPO mapping data (requires additional purchase/s) The eTrex Venture HC features a high-sensitivity GPS receiver for peak performance in any environment and includes 24 megabytes (MB) of internal memory, a detailed base map and a crisp colour screen. With its high-sensitivity, WAAS-enabled GPS receiver, eTrex Venture HC locates your position quickly and precisely and maintains its GPS location even in heavy cover and deep canyons. The advantage is clear whether you're in deep woods or just near tall buildings and trees, you can count on Venture HC to help you find your way when you need it the most. The 256-colour, sunlight-readable display makes it easy to distinguish map details even in bright sunlight.