No matter where your adventure takes you, you''ll never worry about getting lost when you''re with the Foretrex 101 Wrist mounted, lightweight hands free navigation Stores 500 waypoints, 20 routes and track log Runs for up to 15 hours on 2 x AAA batteries (not included) Waterproof to IPX7 standard Ideal for kayaking, hang gliding, skiing or any other activity that requires both hands free PC serial interface cable available separately (Order Code A71HY) Foretrex keeps track of your path and displays it as a tiny dotted trail on the screen. Just turn on Foretrex''s TracBack feature, and you can retrace your path back to the beginning. You can save locations in memory as waypoints (up to 500 of them), so you can always find your way back to any important place, like your campsite or vehicle. Foretrex also lets you put several waypoints together to create and store routes to all of your favourite places. To keep track of your trip, Foretrex 101 incorporates a trip computer, sunrise/sunset and hunting and fishing information and can connect to your PC with the optional serial cable.