Cobra Global Positioning System, GPS 100. If you're hiking, boating, hunting or on a road trip, you can find your way with the GPS 100 global positioning system from Cobra. This device is waterproof, is easy to use and twice as fast as other brands. The 18 parallel channel GPS continuously tracks and uses up to 18 satellites to compute and update user's position, giving the quickest acquisition time of any handheld recreational GPS receiver available today! It stores up to 500 waypoints with names and symbols and you can creat a route with up to 50 waypoints. And it automatically tracks your travel with up to 2,000 logpoints. Save up to 10 tracks from the track log with the ability to navigate the track path in both forward and reverse.