This device is used for finding the speed while you are running or jogging. The device is fixed to the shoes, the distance between the shoe is measured, also the time. Then the speed is calculated by these two inputs. The o/p is then sent to your wrist watch (digital watch).
This particular shoe can be used for atheletes, joggers etc.
Reward: If this idea is succesful then my reward is "A date with Miss World 2006"