Samsung Galaxy Smart Tag is a small battery powered tracking device that let you keep tabs on personal items that you lose often; like your wallet, purse, keys, tv remote, backpack or even your pet. It is based on bluetooth low energy v5.0 technology that lets you find things within a range of 120 meters. It has a built-in speaker that produces a sound when you tap the button from your phone to easily track a tagged item in your home or office.