It is best to hold the Dongle together with your phone, or in your hand. Tap the "Scan" button on the app’s screen and scan the area of your bag or room with a swipe of a hand. All the items which are found around will be displayed with a V mark, showing that they're in place. If an item is missing, the app will notify you and it will be marked with X. You can tap on item’s Scan option, and GearEye app will guide you to the lost item using graphics and sounds like in the “Hot & Cold” game.