THis product is a unique way to do a "fun" work out (as much fun as any workout can be!). It sets up typical exercise routines (i.e. running, lunges, jumps, etc) to outdoor sports activities. So, one minute you may be a part of a mountain biking race and the next you may be playing basketball. Also, with the arm and leg sensors and the heart rate monitor that comes included in the package, it ensures that you are doing the exercise correctly. On top of all of this, you are able to track your data online with a personalized workout profile, including info such as how much sleep you got the night before, how you ate, the amount of water you drank, etc. It's a great way to help keep you accountable. All in all, a great investment!