A tracking device and a tracker that protects against lossAbove all, it is small or smaller than the medalit's have a special application on Google Play and the App Store called (I searching)It has bluetooth, so you can connect it to your mobile phone and attach the A.L.T. In your son’s shirt with a pin, his pocket or his bag, even if you are on the street and a distance from you that you specify in the application, for example, two meters, it will set a loud alarm and warn you that your son is far away from youAnd you can put it in your car, so that you can locate the parking lot (corner) in itIt can also be tied to the neck of the dog or cat while you are outsideNot like that, but you can also hang it in the keys, because if you forget it anywhere, just as you start, it is a very loud warning.It also sticks to the remote control instead of flipping the apartment and not connecting it to the other