Completely useless. If you are in doubt as to where you forgot the earbuds, the GPS might give you a hint, but you won't find it. Somewhere in my house is hidden one of two 400$ ear buds. Make it ring they say. HA! You cannot hear any ringing from an effing earbud. The app says it's in my house, but where... Don't buy the Samsung earbuds. OK, they are awsome, but that will just enhance your sorrow when you lose one.