After the tracker activation, Smile will become a careful guard of your keys, wallet, luggage or anything else that comes to your mind. If you open the application and click on your Smile, it will instantly draw your attention by ringing and blinking. Where have I left my keys? The ringing can be heard from the hanger in the entrance hall. You can ring your Smart phone at a double-click of a button on the tracker. You can of course choose the melody to be stylish. The owners of iOS can get help from Siri thanks to voice orders.