Amazon has the Tile Mate Smart Tracker with Replaceable Battery for $19.99 (regularly $24.99) and a 4-Pack for $49.99 (regularly $59.99) with Free Shipping for a limited time.

Amazon also has 2 Tile Mate with Replaceable Battery and 2 Tile Slim Smart Tracker for $49.95 (regularly $69.99) with Free Shipping for a limited time.

The Tile Mate Bluetooth trackers are perfect for keeping track of your essential items like your keys, bag, wallet, and laptop. The Tile Mate is designed with a convenient hole to loop onto keychains or drop in a bag. Use your smartphone to make your Tile ring when it’s nearby but out of sight. Can’t find your phone? Simply double press the button on your Tile to make your phone ring -even on silent. If your Tile isn’t where you left it, the Tile community can anonymously help you and update the location of your item if another phone running the Tile app comes within range of your missing item. The Mate includes a replaceable CR1632 battery is guaranteed for one year from activation. You can easily replace it yourself. The Slim has a built-in battery so after a year you’re eligible to replace or exchange your device at a discount.