Wrist mounted, lightweight hands free navigation Ideal for kayaking, hang gliding, skiing or any other activity that requires both hands free Internal lithium-ion battery provides up to 15 hours'' use when fully charged Waterproof to IPX7 standard Stores 500 waypoints, 20 routes and track log No matter where your adventure takes you, you''ll never worry about getting lost when you''re armed with the Foretrex 201. 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 201 incorporates a trip computer, sunrise/sunset and hunting and fishing information and can connect to your PC with the supplied PC serial interface cable. The Foretrx 201 is also supplied complete with a cradle mount AC charger.