I have a friend who enjoys playing baseball, but was concerend about his throwing speed. He bought this product and his speed improved slowly but surely. Deffintly something I would recomand if you play or watch in person any kind of sport. (Obviously, you won't know the speeds of the throw if you try to use it with a television)

I bought this so that we could train our Little League pitchers. They get instant feedback on what little changes in their form and mechanics will make in their speed. With this kind of feedback, they can see that the coaches just might know what they are talking about so it helps us in other areas of instruction also. Having this type of monitor also allows them to get a sense of what speed they can throw consistently and with accuracy. We have also use it to measure bat speed. When we use it this way, then even practice and training becomes fun for the kids. When we train out pitchers, we mount it on an ordinary camera tripod behind the catcher. The pitcher and the coach can see the result immediately. Battery life is good but the AC adapter is a really good investment.

This device would not pick up a 35 mph pitch thrown directly over it.