A Shadowbox records speed, location, acceleration, jump height, jump distance, hang time, G-forcec, exact object angles, rotation degrees and spin rates and more.
Check your data directly on the box, or upload the data to your computer and analyze every aspect of your performance. Attach a Shadowbox to any object, pick a sport or activity and hit 'record'....See not only what you did, but exactly where you did it via a one-click export of your ride path into Google Earth.
I have listed this on ebay for a friend, but if anyone here at BOL is interested, I would rather pull from Ebay and sell directly. It's a pretty cool item. http://shadowboxlive.com/
Ebay listing:
http://cgi.ebay.com/SHADOWBOX-3D-Sports-recorder-kiteboarding-snowboard-gps-/120702052234?pt=GPS_Devices&hash=item1c1a67278a