8-Pack Trackr Pixels | $70 | Amazon

Trackrs are similar to Tiles, in that they’re little dongles that use Bluetooth to help you find your keys, wallet, dog, luggage, or anything else you’ve misplaced, but with one key difference: You can change the coin cell battery yourself. Tile does have a discount program to buy new trackers once they die after a year, but Trackrs will still be cheaper in the long run, and today, they’re cheaper up-front too: Get eight of them for just $70!

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