The Original DrumDial is a unique device that helps you to tune your drums. Of course there is the traditional method of tuning drums by ear, but this uses a metering system to help you tune your drums properly and to the same pitches every time if that's something you'd like to do. It's a small device that you hook on to the side of your snare drum, tom drum, timpani, or any other type of drum that you would tune, and it shows you via a meter how far off you are. I'm not primarily a drummer, so I don't own of these, but I've used them in the studio where tuning drums is especially important. You don't even need to hit the drum in order to use the DrumDial. It's extremely accurate and is awesome when you want to tune your tom tom drums to a certain interval or when you're looking for that perfect snare drum pitch. It's also great in a live environment, as it allows you the comfort of not having to be hitting your drums during sound check to tune them up. It simply makes the process quicker and easier and will not only save you time but also improve your accuracy. There are a number of different products out there like the DrumDial, but this seems to be the best and most accurate from what I hear talking to drummers in the studio. There is also a digital version of the DrumDial, but I've yet to use this model. The price is definitely reasonable but it isn't the kind of thing that will cost you close to nothing. Still, it's a great investment for drummers who are recording and playing live regularly as it's going to pay for itself once you see how quick, easy and accurate it is!