The Bluetooth Tracker Tag iPhone Find My Key Finder Smart Tag is a set of four alternative tags made by Oscanna. Specifically designed for Apple devices, these plastic tags come with a strap for easy mounting on key fobs. With Bluetooth connectivity, they allow users to track their keys or other items using their iPhone. The tags are compatible with various networks such as EE, Vodafone, and Three, providing a convenient and reliable way to keep track of valuable items. The manufacturer offers a one-year warranty, ensuring the quality and functionality of these smart tags.