Amazon is offering a discount on a four-pack of Apple AirTags, available for $79, down from the regular price of $99. This is the best deal on AirTags seen this year. AirTags use Apple’s Find My network to help iPhone owners keep track of their belongings. The trackers can locate lost items and use public location information from millions of Apple devices. Additionally, the Find My app allows users to ping the tracker, play a sound, and locate the lost object with direct arrows. The battery in the tracker lasts for about a year and can easily be replaced with a CR2032 battery. However, one downside is that there is no built-in key or way to attach the AirTag to something else, so an accessory is needed. The AirTags are IP67 rated for dust and water resistance and can track up to 32 items in the Find My app. Users must have an Apple device to utilize the tracking capabilities. Follow @EngadgetDeals on Twitter and subscribe to the Engadget Deals newsletter for more news and shopping tips.