Tile mate

Easily attach Tile Mate to keys, backpacks and anything else you need to keep track of regularly. Water-resistant with an up to 250 ft Bluetooth range, loud ring and up to 3-year battery. Just open the free Tile app and tap Find to locate your stuff. You can also double press the button on your Tile to ring and find your phone.

Dimensions (Overall): 37.76 Millimeter (H) x 37.76 Millimeter (W) x 7.15 Millimeter (D)
Weight: .14 Pounds
Connection Types: No Wired Connection Ports
Wireless Technology: Bluetooth
Maximum Battery Charge Life: 1 Years
Battery: 1 Non-Universal Lithium Ion, Required, Included