Pro is a powerful tracker for keys, backpacks, and purses. Water-resistant with an up to 400 ft. Buetooth range, our loudest ring and up to 1-year replaceable battery, Pro easily attaches to anything you need to keep track of regularly. Just open the free Tile app and tap Find to locate your stuff. You can also double press the button on your Pro to ring and find your phone. Bluetooth version 4 (BLE). Weight 50g. Manufacturer’s 1 year guarantee. EAN: 819039022668.