Wrist Mounted 12 parallel channel GPS receiver Features A wearable Personal Navigator`, perfect for outdoor and marine enthusiasts who want hands-free GPS navigation in a lightweight, affordable package. 12 parallel channel GPS WAAS/Ergnos Enabled - accurate up to 3m Stores up to 500 waypoints/icons with name and graphic symbol 20 reversible routes with up to 125 waypoints each 10 saved tracks let you retrace your steps in both directions up to 10,000 track log points dual position display on the same screen - OS/GB and Lat/Lon Water resistant (submersible to one metre for 30 minutes) Typical battery life of 15 hours from a rechargeable battery Includes battery charger, PC interface cable and wristband expander strap Measures 8.38 x 4.32 x 1.52cm Weight 78g.