Tile Mate + Slim 4-pack (2 Mates/2 Slims) - Bluetooth Tracker - Black/WhiteThe Tile Mate + Slim Combo Pack (4 Pack) Bluetooth Trackers. Black and White version. Features: Find your keys, wallets and more : Directly attach Mate to keys, put Slim in your wallet, and use our app on iOS or Android to find them. Keep track of more for less or give them to your friends and family as a gift Find nearby: Use the Tile app to ring your Mate and Slim when theyre within 200 feet or ask your Smart Home device to find it for you. Tile