In reply to Boulderdash86:
Bit more information about it.
Global positioning system (GPS) receiver continuously tracks and uses up to 12 satellites
Calculates current and average speed, time of sunrise and sunset, trip distance, and more
Automatic track log--10 saved tracks let you retrace your path in both directions
Tough waterproof case
runs for 18 hours on 2 AA batteries
Compatible with optional Garmin MapSource software for downloading trip and waypoint data (not map compatible)