The Cobra Tag is a type of sensor that can be attached to your keys, TV remote, wallet or any other item that you are afraid of losing. To make the Cobra Tag work you have to download the free app for your smartphone. The sensor works to let you know if you have left an important item behind when leaving a place.
The Cobra Tag not only helps you locate items, but also helps to locate a misplaced cellphone. All you need to do is push the Cobra Tag's button and it will call your phone for you. If you have misplaced an item other than your phone, all you need to do is use your phone's app to ring whatever item has the sensor on it.